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/** Used for built-in method references. */ | |
var objectProto = Object.prototype; | |
/** Used to check objects for own properties. */ | |
var hasOwnProperty = objectProto.hasOwnProperty; | |
/** | |
* Initializes an array clone. | |
* | |
* @private | |
* @param {Array} array The array to clone. | |
* @returns {Array} Returns the initialized clone. | |
*/ | |
function initCloneArray(array) { | |
var length = array.length, | |
result = new array.constructor(length); | |
// Add properties assigned by `RegExp#exec`. | |
if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { | |
result.index = array.index; | |
result.input = array.input; | |
} | |
return result; | |
} | |
export default initCloneArray; | |