[jlongster]

What doesn't work about them?

I use `Atomics.wait` and `Atomics.compareExchange` and maybe a couple other APIs and it works well on Safari Technology Preview (if you enable SharedArrayBuffer).

[paulgb]

Ah, I should have clarified that I mean the assembly instructions for atomics, rather than the JavaScript API. I.e. the opcodes listed here: https://github.com/WebAssembly/threads/blob/master/proposals...

[jlongster]

Oh right, that makes sense in the context of this thread :)