How to determine if a web page is jquery-enabled?

Question

What is the best way to determine if a webpage is jquery enabled? Using jquery itself if that's the best way to determine it.

Answer 1

if(jQuery) //jquery object exists

jQuery isn't magic - it's essentially just a big object. You can check for it like you would any other object.

Same thing to ensure libraries within jQuery are loaded:

if(jQuery.DatePicker) //lib exists