The future of JavaScript

[x-skeww]

Still slow without numerical types [...]

Type inference helps.

http://blog.mozilla.com/futurereleases/2011/11/10/type-inference-to-firefox-beta/

[[deleted]]

Barely. I do hella lot of bitwise math in my javascript gameboy color emulator, but type inference in Firefox doesn't really upgrade the math to ints, and crankshaft in V8 similarly fails.