leetcode

0 /**

1 * @param {number[]} nums

2 * @param {Function} fn

3 * @param {number} init

4 * @return {number}

5 */

6

7 var reduce = function(nums, fn, init) {

8 let acc = init

9 for(i in nums) acc = fn(acc, nums[i]);

10 return acc;

11 };