I have an app I have developed that uses concurrency. My dev env allows me to select different targets. One of those targets is WebAssembly. So I got it configured and decided to test my app. It immediately failed on compile due to the concurrency module missing. I later found that for my dev env concurrency for webassembly is experimental.

So concurrency is a thing for webassembly, but the support on my dev env end is not there yet.

Is threading difficult in webassembly?