pad a string to be a certain length
npm install https://github.com/isaaguilar/padding-js.git
const padding = require("padding-js")
// padding( LENGTH, STRING, CHARACTER )
const padding = require("padding-js")
let s = "too short"
console.log(s.length)
// 9
s = padding(16, s)
console.log(s.length)
// 16