The answer is yes. These are silly benchmarks, but you should be aware of the costs of using MooTools.
JS perf is a very large topic. In real world web stuff, the DOM is the bottleneck. But, if you need to create thousands of objects in a loop or run some method on an object thousands of times in a loop, avoid using Class or anything fancy at all. For example, Slick.js does not use Class. Slick also avoids function calls and extending DOM nodes, etc… In general, if you are writing anything that needs to be that insanely fast (few of us ever do) then you need to know how to make JS insanely fast yourself. — Thomas Aylott / SubtleGradient.com (from iPhone 4) On Apr 4, 2011, at 5:13 AM, Peter Hewat <peter.he...@gmail.com> wrote: > Are these just silly benchmarks that don't mean anything in real life usage > or is there something to worry about?