js query code example

Example 1: jquery

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>

Example 2: js select element by css selector

// First Element:
document.querySelector('.class')

// Multiple Elements:
document.querySelectorAll('.class')

Example 3: jquery

<script src="https://code.jquery.com/jquery-3.5.1.js" integrity="sha256-QWo7LDvxbWT2tbbQ97B53yJnYU3WhH/C8ycbRAkjPDc=" crossorigin="anonymous"></script>

Example 4: qjuery

jQuery is a JavaScript library designed to simplify HTML DOM tree
traversal and manipulation, as well as event handling, CSS animation,
and Ajax.

It is free, open-source software using the permissive MIT License.

As of May 2019, jQuery is used by 73% of the 10 million most popular
websites