Get the byte length of a Base64 encoded string.
npm install fast-base64-lengthGet the byte length of a Base64 encoded string.
``sh`
npm install --save fast-base64-length
`js
const base64Length = require('fast-base64-length')
// Pass the string to measure
console.log(base64Length('SGVsbG8sIFdvcmxkIQ=='))
//=> 13
``