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