Elements changeClass() - KirkGarcia182/domExtend GitHub Wiki
Is a shortcut to classList.replace().
element.changeClass(from, to);
The element you just manipulated so you can chain these methods.
<!DOCTYPE html>
<html>
<head>
<title>domExt Examples</title>
</head>
<body>
<div id="app">
<div class="menus">
<ul id='menuList'>
<li><a class='menuLink'>Menu 1</a></li>
<li><a class='menuLink'>Menu 2</a></li>
<li><a class='menuLink'>Menu 3</a></li>
</ul>
</div>
</div>
<script type="text/javascript" src="domExt.js"></script>
<script type="text/javascript">
window.$ = document;
let firstMenuLink = $.qs('.menuLink');
firstMenuLink.changeClass('menuLink', 'newLink');
console.log(firstMenuLink);
/* Result
<a class='newLink'>Menu 1</a>
*/
</script>
</body>
</html>