JSFiddle - React, Tailwind, and code Playground

by deepak sisodiya

JavaScript

/* Javascript array reduce() method applies a function simultaneously against two values of the array (from left-to-right) as to reduce it to a single value.
*/

var alert  = function (str) {
   var st = document.createTextNode(str);
   var p = document.createElement('p');
   p.appendChild(st);
   document.querySelector('body').appendChild(p);
}

var number = [0,1,2,3]
var sum = number.reduce(function(a,b) {
    return a + b;
})

alert(sum)