string-to-arraybuffer 
Turn dataURI/base64/plain string into an ArrayBuffer.
```js
var str2ab = require('string-to-arraybuffer')
// Plain 'Hello World!'
var abuf1 = str2ab('Hello World!')
// Base-64 'Hello World!'
var abuf2 = str2ab('SGVsbG8sIFdvcmxkIQ%3D%3D')
// Barebones data-uri 'Hello World!'
var abuf3 = str2ab('data:,Hello%2C%20World!')
// Base-64 data-uri 'Hello World!'
var abuf4 = str2ab('data:text/plain;base64,SGVsbG8sIFdvcmxkIQ%3D%3D')
```
Related
- arraybuffer-to-string − represent binary data in string
- data-uri-to-buffer − decode URI string to Buffer.
- to-array-buffer − convert anything to ArrayBuffer.
