[cheph]

> So you "might not need JQuery" because you can program it yourself following the examples given, and can choose which parts of it you need and want to package with your app.

You could do that for any software, not sure what you gain from doing it though.

[galaxyLogic]

Your app becomes smaller and easier to maintain and understand because it has fewer dependencies.

Of course if you need much of the functionality of JQuery then it is a perfect fit for you.

Note there is a cost to JQuery associated with learning and understanding what exactly each function of its API does. If you have paid that cost already by using JQuery and thus learning it, and you need it, then it makes sense to keep on using it.