Node.js ponyfill for atob and btoa encoding functions

atob.js

module.exports = function atob(a) {
    return new Buffer(a, 'base64').toString('binary');
};

btoa.js

module.exports = function btoa(b) {
    return new Buffer(b).toString('base64');
};

index.js

module.exports = {
    atob: require('./atob'),
    btoa: require('./btoa'),
};

package.json

{
  "name": "atob-btoa.js",
  "version": "1.0.0",
  "description": "Node.js ponyfill for atob and btoa encoding functions"
}