| Leo Repp | 58b9f11 | 2021-11-22 11:57:47 +0100 | [diff] [blame^] | 1 | /** 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; |