JQuery is a library of JavaScript and is best used with traditional Javascript techniques. We can use it to find, change, and animate specific parts of our webpage, it can also be used for event handling such as when the page is ready or something is clicked, and it can be used to communicate with the web server without the need to reload the page. These are all things that can be accomplished with pure Javascript but JQuery does it with less code. The whole point is to do more while writing less, making our code more efficient.
To learn JQuery, you’ll need to know or at least have a general understanding of HTML, CSS, and JavaScript.
Last, to use JQuery you need to either:
1. download JQuery from JQuery.com
2. include it from a CDN, like google