jQuery
jQuery is a javascript library that allows you to manipulate the DOM. It may be
useful to perform some actions such as getting DOM elements or adding some. In
the latter case, you can take a look at the .ajax() function. You can find all
the documentation here:
Its usage is not mandatory, but is recommended. You can find an example of it in
the src/utils/notify.js file.
You can also use native javascript to perform the same actions with functions on
the document object.
You can find the documentation here: Document.
Take a special look at the getElementById and
querySelector functions