| var arrayReduceRight = require('./_arrayReduceRight'), |
| baseEachRight = require('./_baseEachRight'), |
| baseIteratee = require('./_baseIteratee'), |
| baseReduce = require('./_baseReduce'), |
| isArray = require('./isArray'); |
| |
| /** |
| * This method is like `_.reduce` except that it iterates over elements of |
| * `collection` from right to left. |
| * |
| * @static |
| * @memberOf _ |
| * @since 0.1.0 |
| * @category Collection |
| * @param {Array|Object} collection The collection to iterate over. |
| * @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| * @param {*} [accumulator] The initial value. |
| * @returns {*} Returns the accumulated value. |
| * @see _.reduce |
| * @example |
| * |
| * var array = [[0, 1], [2, 3], [4, 5]]; |
| * |
| * _.reduceRight(array, function(flattened, other) { |
| * return flattened.concat(other); |
| * }, []); |
| * // => [4, 5, 2, 3, 0, 1] |
| */ |
| function reduceRight(collection, iteratee, accumulator) { |
| var func = isArray(collection) ? arrayReduceRight : baseReduce, |
| initAccum = arguments.length < 3; |
| |
| return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEachRight); |
| } |
| |
| module.exports = reduceRight; |