Question

How to encoded and decodes a string base-64 ASCII encoding WindowBase64 in JavaScript

Answer 1

var encode = window.btoa("JavaScript"); 
document.write(encode + "<br />");

var decode = window.atob(encode); 
document.write(decode + "<br />");

/*
run:

SmF2YVNjcmlwdA==
JavaScript
   
*/

 

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