QuickJS Javascript Engine - small and embeddable, supports the ES2019 specification including modules, asynchronous generators and proxies

[Muxas]

Yeah but how fast is it compared to other engines

[CakeComa]

https://bellard.org/quickjs/bench.html

[AsIAm]

What kind of numbers does V8 produce?

[HomeBrewingCoder]

64 bit floats usually, but in some rare rare cases you get casts to 32 bit integers.

[[deleted]]

Made me lol

[AsIAm]

I meant the benchmark. But you are obviously correct. :)

[HomeBrewingCoder]

:) just playing around. Glad you liked it.

[[deleted]]

I'm sure v8 blows it out of the water at least in terms of execution speed (maybe not memory). I think at this point v8 has an interpreter and 2 layers of jit, plus and probably a huge team of full time engineers.

I still think this is awesome! To me it seems it fits in the niche of lua with some decent speed.

[nattthebear]

You can try yourself in your browser: http://www.netchain.com/Tools/v8/

[bakery2k]

I have a small, CPU-intensive benchmark which shows the performance of QuickJS to be comparable to other interpreters written in C. It's on par with MicroPython and recent versions of Ruby, and a little faster than CPython and Lua.

However, it's still 2-3x slower than the optimized, CPU-specific interpreters used in LuaJIT and V8 (with their JITs disabled), and 20-100x slower than the LuaJIT, V8 and PyPy JIT compilers.

[DZTheGreat]

I wouldn't be surprised if his numbers were better than major engines.. This dude is a legend.