js cheat cheat dom code example

Example 1: javascript dom cheat sheet

// Returns a reference to the element by its ID.
document.getElementById('someid');

// Returns an array-like object of all child elements which have all of the given class names.
document.getElementsByClassName('someclass');

// Returns an HTMLCollection of elements with the given tag name.
document.getElementsByTagName('LI');

// Returns the first element within the document that matches the specified group of selectors.
document.querySelector('.someclass');

// Returns a list of the elements within the document (using depth-first pre-order traversal of the document's nodes)
// that match the specified group of selectors.
document.querySelectorAll('div.note, div.alert');

Example 2: dom javascript cheat sheet

<div id='box1'>
  <p>Some example text</p>
</div>
<div id='box2'>
  <p>Some example text</p>
</div>