Are you perhaps thinking of JQuery UI? The core JQuery lib is still used. And for basic front end dev it really does offer most of the utility you'll look for in other libs.
1. Get and manipulate dom elements.
2. Register simple event handlers
3. Ajax calls that are simple (frankly all other ajax-ish APIs I've ever seen pretty much copy the design and approach of the JQuery one).
Also a pretty big ecosystem of simple highly focused add-ons. You (still) can get a long way with just JQuery
You can, but it pretty much is obsolete at this point.
1. `document.querySelector()` and then just modify the DOM however you want.
2. `node.addEventListener()`
3. `fetch()`
There are still things that jQuery provides that aren't as simple to do with the built in functionality, but in most cases, you can get by just fine without pulling in all of jQuery. And in those cases where you can't, there are more focused libraries available for those specific use-cases.
1. Get and manipulate dom elements. 2. Register simple event handlers 3. Ajax calls that are simple (frankly all other ajax-ish APIs I've ever seen pretty much copy the design and approach of the JQuery one).
Also a pretty big ecosystem of simple highly focused add-ons. You (still) can get a long way with just JQuery