JoxieMedina

import {uniqueId} from 'lodash' // optional
/**
 * @param {String} file The path of the file you want to load.
 * @param {Function} callback (optional) The function to call when the script loads.
 * @param {String} id (optional) The unique id of the file you want to load.
 */
export const loadAsyncScript = (file, callback, id) => {
  const d = document
  if (!id) { id = uniqueId('async_script') } // optional
  if (!d.getElementById(id)) {

JoxieMedina

/*
Write some code, that will flatten an array of arbitrarily nested arrays
of integers into a flat array of integers. e.g. [[1,2,[3]],4] -> [1,2,3,4]
I use JS in ES6 Syntax
Tested in Chrome, Firefox and Safari
*/
let flatten = []
evaluate = (el=[0,[[1, 2],[3]],[4,[[5,6]]]])=>{
 el.map(n=>n instanceof Array ? evaluate(n) : flatten = [...flatten,n])
}