[fsdjkflsjfsoij]

> That is, when you stripe out all the actions that make javascript slow, it very often ends up being just as fast as a compiled language.

ok...

> In fact, there are some circumstances where it can beat a language like C++ or Rust due to the fact that it has to incorporate runtime information into optimizations.

People used to make the same claim about Java and in every single example I've ever seen the Java/Javascript is extremely optimized, performance isn't consistent across VM versions, and the C++/Rust is extremely naive (usually allocating unnecessarily and not using arenas in hot paths that are allocation heavy).

[cogman10]

None of these tests really show JS winning, but they are showing that it's within spitting distance of C++ in multiple tests [1]

And, you can look at the code yourself, most of the examples read pretty much exactly the same as their C++ counterparts.

Mind you, this is also a test that looks at execution start to finish and doesn't give warmup time (which will always favor statically compiled languages).

> performance isn't consistent across VM versions

That's true for C++ compilers, so why would you expect performance to remain constant with a JIT compiler?

[1] https://benchmarksgame-team.pages.debian.net/benchmarksgame/...

[PH95VuimJjqBqy]

absolutely spot on, there was a time when Hotspot was going to bring Java to the promised land.

It never happened.