I don't think WebAssembly is trying to replace JS,...

# javascript

[sdeleuze]

I don't think WebAssembly is trying to replace JS, they are complimentary:
- JavaScript is the language of the Web
- WebAssembly will be the bytecode of the Web

So WebAssembly only tries to replace JS when it used as "the bytecode of the Web", which is what Kotlin does.
If you have a look to https://github.com/WebAssembly/design/blob/master/UseCases.md, the first use case listed is:
"Better execution for languages and toolkits that are currently cross-compiled to the Web (C/C++, GWT, …)"

WebAssembly current focus (MVP, this summer) is more on C/C++ hiperf apps like games, but post MVP scope will be more broad: https://github.com/WebAssembly/design/blob/master/PostMVP.md