jQuery: returns an array-like structure that is consistent with the rest of the API whether it's one element returned, no elements are returned, or many elements are returned.
DOM:
- few if any DOM methods work on an array of elements. Or even on a NodeList
- `querySelector`: returns null if not found, Element if found. Throws if there's a selector syntax exception.
So you have to wrap it in a try/catch and in a check against null when you need to use it
- `querySelectorAll`: returns NodeList, Throws if there's a selector syntax exception.
NodeList is not an array. It's so badly designed that even the .forEach method was only added to it two years after the method was introduced.
If you need anything but .forEach, it's better to call Array.from() on the result than deal with iterator shenanigans of it's sparse interface
But sure, "it has 98% and 10% extra", whatever that means.
And that's just two of the methods. Everything else is just as bad: 90s-era verbose imperative object-oriented API.
