[kllrnohj]

> Plus, it gives (or will give) much lower-level access to features like threads and memory allocation.

There's no reason JavaScript couldn't just have those features. It already has some amount of memory allocation control via ArrayBuffer & DataView.

[imtringued]

You're describing asm.js which had significant issues as a compilation target. The generated javascript code was massive and it took several seconds just to parse it.

[caseymarquis]

Related is a mozilla post on streaming wasm for big performance gains: https://hacks.mozilla.org/2018/01/making-webassembly-even-fa...

[kllrnohj]

asm.js never added threads, which is a far bigger performance issue than fine-grained manual memory allocation is.