Nodejs btoa

Buffer.from('Hello world!', 'binary').toString('base64')

Source: stackoverflow.com

Atob nodejs

(function () {
  "use strict";

  var atob = require('atob');
  var b64 = "SGVsbG8sIFdvcmxkIQ==";
  var bin = atob(b64);

  console.log(bin); // "Hello, World!"
}());

Source: npm.runkit.com

Rror: btoa is not defined

console.log(Buffer.from('Hello World!').toString('base64'));

Source: stackoverflow.com

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