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                <h1>Prefill Machine</h1>

  <button id="prefill">Refresh Random Data</button>

<form action="#0" id="form">
    <label for="name">Name</label>
    <input type="text" name="name" id="name" placeholder="Digby Coyier" required>
    <label for="email">Email</label>
    <input type="email" name="email" id="email" placeholder="[email protected]" required>
    <label for="name">Username</label>
    <input type="text" name="username" id="username" placeholder="digby2007" required>
    <label for="name">Password</label>
    <input type="password" name="pw" id="pw" required>
    <label for="name">Repeat</label>
    <input type="password" name="pw-repeat" id="pw-repeat" required>

    <legend>Radio Choice</legend>

    <div class="choice-group">
      <label class="radio-label" for="radio-choice-1">Choice 1</label>
      <input type="radio" name="radio-choice" id="radio-choice-1" value="choice-1" />

      <label class="radio-label" for="radio-choice-2">Choice 2</label>
      <input type="radio" name="radio-choice" id="radio-choice-2" value="choice-2" />

    <label for="select-choice">Select Choice</label>
    <div class="choice-group">
      <select name="select-choice" id="select-choice">
        <option value="Choice 1">Choice 1</option>
        <option value="Choice 2">Choice 2</option>
        <option value="Choice 3">Choice 3</option>

    <label for="message">Message</label>
    <textarea cols="40" rows="8" name="message" id="message"></textarea>
    <label for="cc">Credit Card #</label>
    <input type="text" name="cc" id="cc" placeholder="4242 4242 4242 4242" required>

    <label for="exp-1">Expiration <span class="screen-reader">Month</span></label>
    <input class="very-short" type="number" name="exp-1" id="exp-1" placeholder="08" min="1" max="12">
    <label for="exp-2" class="screen-reader">Expiration Year</label>
    <input type="number" name="exp-2" class="very-short" id="exp-2" placeholder="16" min="14">

    <label for="exp-1">CVV</label>
    <input class="short" type="text" name="cvv" id="cvv" placeholder="123">
    <label for="name">Address</label>
    <input type="text" class="long" name="address" id="address" placeholder="123 Super Street">
    <label for="city">&nbsp;<span class="screen-reader">City<span></label>
    <input type="text" name="city" id="city" class="medium"  placeholder="Milwaukee">
    <label for="state" class="screen-reader">State</label>
    <input type="text" name="state" class="very-short" id="state" placeholder="WI">
    <label for="zip" class="screen-reader">Zip</label>
    <input type="text" name="zip" class="short" id="zip" placeholder="55555" pattern="(\d{5}([\-]\d{4})?)" required>
    <label for="agree-terms">Agree?</label>
    <div class="choice-group">
      <input type="checkbox" name="agree-terms" id="agree-terms">

    <input type="submit" value="Submit" id="submit-button">


                form {
  padding-top: 30px;
  min-width: 458px;
  > div,
  > fieldset {
    border: 0;
    padding: 0;
    margin: 0 0 8px 0;
    clear: both;
  legend {
    float: left;
    width: 100px;
    padding: 7px 10px;
    &.radio-label {
      float: none;
      padding: 0;
  .choice-group {
    padding: 7px 10px 0 10px;
  input[type=radio] {
    margin-right: 10px;
  textarea {
    width: 200px;
    border: 1px solid darken(tan, 20%);
    padding: 7px 10px;
    border-radius: 4px;
    outline: 0;
    &:focus {
      border-color: black;
    &.short {
      width: 60px;
    &.medium {
      width: 150px;
    &.very-short {
      width: 40px;
    &.long {
      width: 300px;

.screen-reader {
  position: absolute;
  top: -9999px;
  left: -9999px;

body {
  background: #E27C37;
  padding: 20px;
  font-size: small;


                var runBookmarklet = function() {

/*==========  Code starts here, above is for demo to work inside CodePen  ==========*/

(function(win, doc, $) {

  'use strict';

  // Don't run script if jQuery isn't loaded
  if (typeof win.jQuery === 'undefined') {

  var data, fillForm, FormData, len, _rand;

  // I like Chris's randomize function.  Lets use it here.
  _rand = function(min, max) {
    return Math.floor(Math.random() * (max - min + 1)) + min;

  // Load FakerJS library
    .done(function() {
    .fail(function() {
      win.console.error('ERROR: FakerJS not loaded!');

  /*==========  CREATE DATA OBJECT  ==========*/

  FormData = function(faker) {

    this.faker     = faker;

    this.randomWord = faker.Internet.domainWord();

    this.username  = 'fake_' + this.randomWord;
    this.username  += _rand(100,9999);

    // set this value to your password specifications
    this.password  = 'pass1234';      = faker.Name.findName();

    this.address1  = faker.Address.streetAddress();      =;
    this.state     = faker.random.br_state_abbr();       = faker.Address.zipCode();

    // Chris's actual credit card number        = '4242 4242 4242 4242';
    this.exp1      = _rand(1,12);
    this.exp2      = _rand(14,22);
    this.cvv       = _rand(100,999);


  FormData.prototype.randomizeSelect = function(el) {
    var $el = $(el);

    len  = $el.find('option').length - 1;

      .prop('selected', false)
      .eq( _rand( 1,len + 1 ) )
      .prop('selected', true);

  FormData.prototype.randomizeRadio = function(radios) {
    radios = radios.not('[type="hidden"]');
    len    = radios.length;

      .prop('checked', false)
      .eq( _rand( 0, len - 1 ) )
      .prop('checked', true);

  FormData.prototype.randomizeParagraph = function(el) {

  FormData.prototype.randomizeCheckbox = function(el) {
    var $el  = $(el);

    $el.prop('checked', false);

    if (_rand( 0,1 ) === 0) {
      $el.prop('checked', true);

  FormData.prototype.randomizeEmail = function(el) {
    $(el).val('chriscoyier+' + this.randomWord + '');

  /*==========  FILL IN THE FORM  ==========*/

  fillForm = function() {
    data = new FormData(win.Faker);



    // Randomize all select boxes
    $('select').each(function() {

    // Randomize all checkboxes
    $('input[type="checkbox"').each(function() {

    // Randomize all textareas
    $('textarea').each(function() {

    // Randomize all emails
    $('input[type="email"').each(function() {


}(window, window.document, window.jQuery));

/*==========  EOF Bookmarklet Code. Below is for Codepen demo. ==========*/

window.jQuery('#prefill').on('click', runBookmarklet);