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