Babel example

babel_transpile.sh

#!/usr/bin/env bash
# install babel cli and preset
npm install --save-dev babel-cli babel-preset-es2015

# do the transpiling of original.js file to transpiled.js
babel original.js --out-file=transpiled.js

original.js

// small example
let tests= ['one', '2', 'III'];
const test = () => console.log(...tests);
test();

transpiled.js

'use strict';

var tests = ['one', '2', 'III'];
var test = function test() {
  var _console;

  return (_console = console).log.apply(_console, tests);
};
test();