JSFiddle - React, Tailwind, and code Playground

by Leonardo Trimarchi

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/start/jquery-ui.css">
<script src="http://knockoutjs.com/downloads/knockout-2.3.0.js"></script>
<script src="http://andersmalmgren.github.io/Knockout.Bindings/src/knockout.bindings.js"></script>

 
<div id="dialog-form" title="Create new user">
  <p class="validateTips">All form fields are required.</p>
 
  <form>
    <fieldset>
      <label for="name">Name</label>
      <input type="text" name="name" id="name" value="" class="text ui-widget-content ui-corner-all">
      <label for="email">Email</label>
      <input type="text" name="email" id="email" value="" class="text ui-widget-content ui-corner-all">
          <label for="leadlocation">Lead Location</label>
          <input type="text" name="leadlocation" id="leadlocation" value="" class="text ui-widget-content ui-corner-all">
      <label for="password">Password</label>
      <input type="password" name="password" id="password" value="" class="text ui-widget-content ui-corner-all">
 
      <!-- Allow form submission with keyboard without duplicating the dialog button -->
      <input type="submit" tabindex="-1" style="position:absolute; top:-1000px">
    </fieldset>
  </form>
</div>
 
 

<button id="create">Create </button>

CSS

#splash {
    text-align: center;
}

JavaScript

$(function() {
    var dialog, form,
 
      // From http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#e-mail-state-%28type=email%29
      emailRegex = /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/,
      name = $( "#name" ),
      email = $( "#email" ),
      password = $( "#password" ),
      leadlocation = $( "#leadlocation" ),  
      allFields = $( [] ).add( name ).add( email ).add( password ),
      tips = $( ".validateTips" );
 
    function updateTips( t ) {
      tips
        .text( t )
        .addClass( "ui-state-highlight" );
      setTimeout(function() {
        tips.removeClass( "ui-state-highlight", 1500 );
      }, 500 );
    }
 
    function checkLength( o, n, min, max ) {
      if ( o.val().length > max || o.val().length < min ) {
        o.addClass( "ui-state-error" );
        updateTips( "Length of " + n + " must be between " +
          min + " and " + max + "." );
        return false;
      } else {
        return true;
      }
    }
 
    function checkRegexp( o, regexp, n ) {
      if ( !( regexp.test( o.val() ) ) ) {
        o.addClass( "ui-state-error" );
        updateTips( n );
        return false;
      } else {
        return true;
      }
    }
    function addUser() {
      var valid = true;
      allFields.removeClass( "ui-state-error" );
 
      
      valid = valid && checkLength( email, "email", 6, 80 );
      
 
      valid = valid && checkRegexp( name, /^[a-z]([0-9a-z_\s])+$/i, "Username may consist of a-z, 0-9, underscores, spaces and must begin with a letter." );
      valid = valid && checkRegexp( email, emailRegex, "eg. [email protected]" );
      
 
      if ( valid ) {
        $( "#users tbody" ).append( "<tr>" +
          "<td>" + name.val() + "</td>" +
          "<td>" + email.val() + "</td>" +
          "<td>" + password.val() + "</td>" +
        "</tr>" );
        dialog.dialog( "close"...