JSDB is a collection of the best JavaScript libraries on the net: at last count, more than 300 are listed.
You should be able to use any of them with AppStudio. After all, if you can do something in JavaScript, you can do it in AppStudio.
The libraries can be used from JavaScript or BASIC: the functions they add to your app become part of your program.
Read more about using JavaScript libraries in Using JavaScript in your App.
Visit the JavaScript Library database here: http://www.jsdb.io.