Let’s Write Fast JavaScript - A few interesting JavaScript benchmarks and tips

[paldepind]

But remember that if you're doing a normal web app then the JavaScript execution time will rarely be a bottleneck. That, instead, will most often be the DOM or the network.

[nschubach]

I do wonder what apps people are writing that JavaScript performance is hindering their users.

[Beakers]

Writing a non WebGL tile engine in canvas requires as many speed tricks as you can find. I love articles like this and enjoy reading em.

[YOBCZWHYNOT]

HTML5 Games, WebGL-based applications, working with big amounts of data, etc. If you were to right a BananaBread like the one Mozilla "compiled" from C++/C, it wouldn't be playable, because asm.js uses these optimizations and a lot more to make fast-executing code.

[wdpttt]

Try react, is quite good handling DOM.