More on Javascript, jsFiddle

I came across a reference to a site called jsFiddle today. jsFiddle is an online tool to test out small pieces of Javascript, HTML and CSS. You get a panel for each of the three and a fourth panel to display the result. There's also a dropdown where you can pick which framework you'd like to include, be it Mootools, jQuery, YUI, Prototype or any other framework out there.

The neat thing about it is that you can save the contents of all the panels and get a link that you can share. Perfect when you want to send someone a code example or similar!

Javascript and me feeling like a tourist without a map

I'm no hard core Javscript developer but I've done small Javascript projects here and there. Nothing fancy, only small stuff, maybe with a bit of jQuery sprinkled in here and there. Since I don't do JS coding on a day to day basis I always feel like a tourist who doesn't really know my way around town. There always seems to be a new framework or two that I should use and if I do pick a framework or utility library I can bet my ass that there is something better that I'm not aware of. This frustrates the hell out of me and it becomes a mental threshold every time I'm about to do something in Javascript. For instance: is Require.js something worth looking in to? What about Backbone.js? Or Underscore.js?