Originally Posted by m2244
I was just messing around with .on() but I get an error telling me that it is not a function. Does that mean that I have an old version of jQuery?
That could very well be. And it is also easy to find out by looking at the file name of the jQuery file or, if that doesn’t indicate it, right into the jQuery file where the version usually is displayed prominently. You can then compare it with the version number shown on http://jquery.com
– and get the latest version right away if applicable.