How to base64 encode inside of javascript

Question

I am trying to implement a simple script on a site that will return base64 encoded information from google\'s ajax API. This is what I am playing with so far:

Answer 1

IE 10 & above and all latest browser

Encode String

var str = "raj";
var enc = window.btoa(str); // cmFq

Decode String

var dec = window.atoa('cmFq'); // raj

Or else you might have your own function on page. small blog with references