Here is my pick of the 10 JavaScript books that web developer of any skill level, including…

const arrayToObject = (array, keyField) =>
   array.reduce((obj, item) => {
     return {...obj, [item[keyField]]: item}
   }, {});

const peopleArray = [{id: 1, name: "John"}, {id:2, name: "Robert"}]

const peopleObject =…

Javascript:

function myFunction() {
  /* Get the text field */
  var copyText = document.getElementById("myInput");

  /* Select the text field */
  copyText.select();
  copyText.setSelectionRange(0, 99999); /*For mobile devices*/

  /*…

String.prototype.replaceAll = function(search, replacement) {
    var target = this;
    return target.replace(new RegExp(search, 'g'), replacement);
};

"my string should be replace here and here".replaceAll("here","replaced match")…

function shuffle(array) {
  var currentIndex = array.length, temporaryValue, randomIndex;

  // While there remain elements to shuffle...
  while (0 !== currentIndex) {

    // Pick a remaining element...
    randomIndex = Math.floor(Math.random()…

function validateEmail(email) {
    var re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    return re.test(String(email).toLowerCase());
}