What parts of jquery do you use today? I ask because my impression is that it's simply not needed anymore with the better DOM interface methods like querySelector
A lot of it has been simplified thanks to API improvements, but simple element manipulation, event handling, etc. is just a little bit easier with it than without. The special ":hidden" selector is just one example I grabbed from opening a recent JS file (e.g., `$(selector).is(":hidden")`).