Comment by Const-me

> but nobody is using it! What does that say?

It’s impossible to replace JS with WebAssembly because all state-mutating functions (DOM tree manipulation and events, WebGL rendering, all other IO) is unavailable to WebAssembly. They expect people to do all that using JavaScript glue.

Pretty sure if WebAssembly were designed to replace JS instead of merely supplementing it, we would have little JS left on the web.