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"
}

The Buffer() is deprecated and is throwing the error "[DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead"

The Buffer() is deprecated and is throwing the error "[DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead"

this is not an error yet, but just a warning.

you can easily overcome it by updating the code as follows:

const atob = a => Buffer.from(a, 'base64').toString('binary')

const btoa = b => Buffer.from(b).toString('base64')