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26 lines
787 B
26 lines
787 B
/** |
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* A specialized version of `_.reduce` for arrays without support for |
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* iteratee shorthands. |
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* |
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* @private |
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* @param {Array} [array] The array to iterate over. |
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* @param {Function} iteratee The function invoked per iteration. |
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* @param {*} [accumulator] The initial value. |
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* @param {boolean} [initAccum] Specify using the first element of `array` as |
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* the initial value. |
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* @returns {*} Returns the accumulated value. |
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*/ |
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function arrayReduce(array, iteratee, accumulator, initAccum) { |
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var index = -1, |
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length = array == null ? 0 : array.length; |
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if (initAccum && length) { |
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accumulator = array[++index]; |
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} |
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while (++index < length) { |
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accumulator = iteratee(accumulator, array[index], index, array); |
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} |
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return accumulator; |
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} |
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module.exports = arrayReduce;
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