Fetching all (javascript) global variables in a page

Question

Is there a way to retrieve the names/values of all global variables on a page?

I would like to write a javascript function to do the following:

1. Find all global variables prefixed with 'xxx_' and stick them in an array (for e.g.)
2. build a query string using the name value pairs as follows: xxx_glob_var1=value1&xxx_glob_var2=value2 etc

How do I do this?

Answer 1

Or you could simply run;

Object.keys(window);

It will show a few extra globals (~5), but far fewer than the for (var i in window) answer.

Object.keys is available in Chrome 5+, Firefox 4+, IE 9+, and Opera 12, ty @rink.attendant.6