"use strict";

const size = require("../../util/size");
/**
 * A specialized version of `reduceRight` for arrays.
 *
 * @since 5.0.0-beta.7.2
 *
 * @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 last element of `array` as
 *  the initial value.
 * @return {*} Returns the accumulated value.
 */


function arrayReduceRight(array, iteratee, accumulator, initAccum) {
  let length = size(array); // setup

  if (initAccum && length) {
    accumulator = array[--length];
  } // iterate backwards


  while (length--) {
    accumulator = iteratee(accumulator, array[length], length, array);
  }

  return accumulator;
}

module.exports = arrayReduceRight;