JSFiddle - React, Tailwind, and code Playground

by deepak sisodiya

JavaScript

// typeof operator

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

alert(typeof(x))
alert(typeof("deepak"))
alert(typeof(1))
alert(typeof(3.14))
alert(typeof(true))
alert(typeof([1,2,3]))
alert(typeof({firstName:"deepak",lastName:"sisodiya",age:22}))
alert(typeof(null))