1
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/** Used for built-in method references. */
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2
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var objectProto = Object.prototype;
|
3
|
|
4
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/** Used to check objects for own properties. */
|
5
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var hasOwnProperty = objectProto.hasOwnProperty;
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6
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|
7
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/**
|
8
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* Initializes an array clone.
|
9
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*
|
10
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* @private
|
11
|
* @param {Array} array The array to clone.
|
12
|
* @returns {Array} Returns the initialized clone.
|
13
|
*/
|
14
|
function initCloneArray(array) {
|
15
|
var length = array.length,
|
16
|
result = new array.constructor(length);
|
17
|
|
18
|
// Add properties assigned by `RegExp#exec`.
|
19
|
if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
|
20
|
result.index = array.index;
|
21
|
result.input = array.input;
|
22
|
}
|
23
|
return result;
|
24
|
}
|
25
|
|
26
|
module.exports = initCloneArray;
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