jQuery is a very popular, if not the most popular, Javascript library. It’s a clear, concise library, and more importantly, it’s fast. Being relatively small in size, in most cases, it works well without slowing load time down. It simplifies a lot of the complicated things from JavaScript, like AJAX calls and DOM manipulation, event handling, and animating. It allows you to add this interactivity to your site quickly, without the need to write vanilla JavaScript. Why is jQuery so great? It’s lightweight compared to most other JavaScript frameworks.It has a wide range of plugins available for various needs.It is easy for...