DOM Enlightenment Book

by peroli

HTML

<script src="https://getfirebug.com/firebug-lite-debug.js"></script>
<div>
  <ul>
    <li class="liClass">Hello</li>
    <li class="liClass">big</li>
    <li class="liClass">bad</li>
    <li class="liClass">world</li>
  </ul>
</div>

<ul>
  <li class="liClass">Hello</li>
</ul>

JavaScript

//select a div as the context to run the selecting methods only on the contents of the div
var div = document.querySelector('div');

console.log(div.querySelector('ul'));
console.log(div.querySelectorAll('li'));
console.log(div.getElementsByTagName('li'));
console.log(div.getElementsByClassName('liClass'));