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