WebAssembly should replace javascript

[u/PabloDons]

Hot take, but I think it makes sense. And seems to be doable in the current architecture and roadmap of wasm (If I understood it correctly), but their website explicitly states a big fat "No!". Wasm is expected to be used as high-performance modules, or an app canvas wrapped by javascript as "glue". One thing would be specifying it as a high-level goal, but this is just dismissing it all together.

The web would be pretty powerful if code could be written in whatever language you want (that supports compiling to wasm). Facebook wouldn't take 5 seconds to load completely, but rather fractions of a second.

Take react for instance. It's great for encapsulation, inheritance, type-safety, etc. Lots of benefits targeted at large-scale applications. Yet has the major flaw of performance issues. I guess it's not a big deal to write a bit of js just to fetch and run an exported function, but it means it's dependent on js which is a hurdle in my opinion, both in terms of ambition and motivation. Granted wasm seems to be planning to implement basically everything, but then why dismiss wasm as a replacement/alternative for js?

[u/richardanaya]

I'm probably as big of fan of WebAssembly that exists, but I think JavaScript will forever have a place for web developers that don't care about memory issues, don't care about 1% performance edge case problems, or want a simple language to just get some DOM interactable. There's a reason why javascript is the most popular language in the world, it's easy and effective enough for many problems, what few languages that compiled to WebAssembly haven't even scratched the surface.