Determing jQuery version?

Question

Is there a jQuery function that returns the version of jQuery that is currently loaded?

Answer 1

I'm not sure how many versions of jQuery this exists in, but a jQuery object has a jquery property that stores the version.

alert( $().jquery );

Will alert 1.4.2 if you're using that version.

Answer 2

alert( $.fn.jquery )

Answer 3

You can use this:

$.fn.jquery
//or if you're using .noConflict():
jQuery.fn.jquery

It's updated automatically when jQuery is built, defined here: http://github.com/jquery/jquery/blob/master/src/core.js#L174

Make sure to use $.fn.property for properties that don't depend on an object, no reason to create an unneeded jquery object with $().property unless you intend to use it :)

Answer 4

$().jquery; // yields the string "1.4.2", for example

Source: http://jquery-howto.blogspot.com/2009/02/how-to-check-jquery-version.html

Answer 5

$().jquery;

This will return a string containing the jQuery version

Answer 6

try

alert($().jquery)