For fast fix: http://bitovi.com/blog/2012/04/faster-jquery-event-fix.html http://bitovi.com/blog/2012/04/faster-jquery-event-fix.html There's a JS benchmark.

For fast fix: http://bitovi.com/blog/2012/04/faster-jquery-event-fix.html http://bitovi.com/blog/2012/04/faster-jquery-event-fix.html There's a JS benchmark. For styles, there's a demo: http://donejs.com/docs.html#!jQuery.styles http://donejs.com/docs.html#!jQuery.styles comparing jQuery's height vs one implemented with reading multiple properties. I can get a benchmark for this soon. As far as animate, that's tricky. There's nothing to measure but framerate I suppose. It does in fact use CSS animations and if you assume they are faster (which what's the point if not) ... then you can assume animate is faster.