Very cool, but the most useful thing to me about Rubular (which this is inspired by) was the quick reference. Considering the results you get for a google searc

Very cool, but the most useful thing to me about Rubular (which this is inspired by) was the quick reference. Considering the results you get for a google search on "JavaScript Regex", a nice simple table with the basic syntax (and methods) would be very valuable. After that, the fact I can test expressions on the page is just gravy. I can test expressions on any page in the world with Dev Tools.