Array.Reduce JavaScript Tutorial Code

BasicReduce.js

'use strict';
//Basic Reduce
let array = [1, 2, 3, 4, 5];
let result = array.reduce(function(sum, element) {
  //Increase sum by element amount
  sum += element;
  console.log(sum); //1, 3, 6, 10, 15
  return sum; //return the current sum for the next iteration
}, 0);

console.log(result); //15