DOM Enlightenment Book

HTML

<script src="https://getfirebug.com/firebug-lite-debug.js"></script>
<div></div>






































<h4 style="border-top:1px solid #ADADAD;padding-top:20px;margin-top:20px;"><strong>&larr; Code Example from <a href="http://www.domenlightenment.com/" target="_blank">DOM Enlightenment Book</a> by <a href="http://www.codylindley.com" target="_blank">Cody Lindley</a></strong></h4>

<p style="background-color:#fff">JavaScript code is executed on page load. Click the "Run" button in the top bar to re-run the JavaScript code. All <code>console.log()'s</code> are logged to the <a href="http://getfirebug.com/firebuglite" target="_blank">Firebug Lite</a> console below &darr;.</p>

CSS

.foo{
  background-color:red;
  padding:10px;
}
#bar{
  border:10px solid #000;
  margin:10px;
}

JavaScript

var div = document.querySelector('div');

//set
div.setAttribute('id','bar');
div.classList.add('foo');
div.classList.add('fo5o');
console.log(div.classList[1]);
/*remove
div.removeAttribute('id');
div.classList.remove('foo');
*/