Is getElementById optional in some browsers?
12957
Do DOM tree elements with ids become global variables?
463
When should I use Inline vs. External Javascript?
36995
What do querySelectorAll and getElementsBy* methods return?
85545
How to display JavaScript variables in a HTML page without document.write
142890
Regular expression getElementById
151839
JavaScript/jQuery - grabbing an integer from an element's id
74987
$('#id tag') vs. $('#id').find('tag') - which is preferable?
66624
Lightning/Aura Components: component.find().getElement never accessible
64428
How to use getElementsByClassName in javascript-function?
5364
javascript document.getElementsByClassName compatibility with IE
25423
What does "use strict" do in JavaScript, and what is the reasoning behind it?
41426
When does the browser execute Javascript? How does the execution cursor move?
35003
getElementsByClassName() doesn't work in old Internet Explorers like IE6, IE7, IE8
4866
How to retrieve the display property of a DOM element?
135802
What's the equivalent of 'getElementsByTagName' in jQuery?
129988
Is type="text/css" necessary in a  tag?
71623
event.preventDefault() vs. return false