Base64 encoding for node (with Buffer) and browser (with btoa).
npm install @wmakeev/base64encode

> Universal Base64 encoding for node, browser and Google Apps Script.
base64encode use btoa in browser, Buffer in node and Utilities.base64Encode in Google Application Script context.
```
$ npm install @wmakeev/base64encode
`js
let base64encode = require('@wmakeev/base64encode')
console.log(base64encode('Just a simple string'))
``