JQuery would make sense when we didn’t have querySelector and fetch API. I can’t think of any reason to use it today on a new project, there are not advantages over vanilla.
const $ = document.querySelector.bind(document)
const $$ = document.querySelectorAll.bind(document)https://api.jquery.com/category/ajax/
Have you seriously looked at this and thought "yeah thats better than using a single native function (fetch)"?
As for the rest of the API - what would you even use besides the css and selector functions? Which again, the native `classList` and a simple bind to the selectors are simpler and less verbose.
$(this).closest(".cont")