| /** |
| * The base implementation of `_.reduce` and `_.reduceRight` without support |
| * for callback shorthands and `this` binding, which iterates over `collection` |
| * using the provided `eachFunc`. |
| * |
| * @private |
| * @param {Array|Object|string} collection The collection to iterate over. |
| * @param {Function} iteratee The function invoked per iteration. |
| * @param {*} accumulator The initial value. |
| * @param {boolean} initFromCollection Specify using the first or last element |
| * of `collection` as the initial value. |
| * @param {Function} eachFunc The function to iterate over `collection`. |
| * @returns {*} Returns the accumulated value. |
| */ |
| function baseReduce(collection, iteratee, accumulator, initFromCollection, eachFunc) { |
| eachFunc(collection, function(value, index, collection) { |
| accumulator = initFromCollection |
| ? (initFromCollection = false, value) |
| : iteratee(accumulator, value, index, collection); |
| }); |
| return accumulator; |
| } |
| |
| module.exports = baseReduce; |