How to code using jQuery?

Question

should I download a library? or use a special tag embedded in html for I can code using jQuery?
because I have included src="..code.jquery...etc"
but still does not work.
(I have saved the file in .js extention)

Answer 1

Hello, Mahdoudou !
To use "jQuery"
You need to connect this library externally

<script src="https://code.jquery.com/jquery-3.1.1.js" defer></script>

The defer attribute defers the execution of the script until the entire page is fully loaded.

A suitable lesson has also been found for you.
https://www.sololearn.com/learn/jQuery/2785/?ref=app

Answer 2

Can you show the code please? Or if the code is not on SoloLearn make sure that the link is correctly embedded into the script tag and your js is loaded before you're using jQuery, you can do it by putting the js into a onload = function (){...} function

Answer 3

How did you attempt to use jquery?