| /** | |
| * Copies the values of `source` to `array`. | |
| * | |
| * @private | |
| * @param {Array} source The array to copy values from. | |
| * @param {Array} [array=[]] The array to copy values to. | |
| * @returns {Array} Returns `array`. | |
| */ | |
| function copyArray(source, array) { | |
| var index = -1, | |
| length = source.length; | |
| array || (array = Array(length)); | |
| while (++index < length) { | |
| array[index] = source[index]; | |
| } | |
| return array; | |
| } | |
| module.exports = copyArray; |