JSFiddle - React, Tailwind, and code Playground

by vvakame

JavaScript

var ary = [1, 2, 3, 4, 5, 6];

var sum = 0;
for(var i = 0; i < ary.length; i++) {
    sum += ary[i];
}

alert("sum = " + sum);

// other approach
sum = 0;
ary.forEach(function(value) {
    sum += value;
});

alert("sum = " + sum);