1 |
3a515b92
|
cagy
|
/** Used for built-in method references. */
|
2 |
|
|
var objectProto = Object.prototype;
|
3 |
|
|
|
4 |
|
|
/** Used to check objects for own properties. */
|
5 |
|
|
var hasOwnProperty = objectProto.hasOwnProperty;
|
6 |
|
|
|
7 |
|
|
/**
|
8 |
|
|
* Initializes an array clone.
|
9 |
|
|
*
|
10 |
|
|
* @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;
|