| /** 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; |
| } |
| |
| module.exports = initCloneArray; |