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I wouldn't say the source language is not meaningful. If you wrote an ahead-of-time JavaScript-to-WebAssembly compiler and benchmarked the WASM generated by that, it would probably be a lot slower than the WASM generated by the Rust compiler, no?


Has anyone compiled v8 to WASM so we can finally run JS in the browser? ;)


v8 is a JIT engine, WASM would not support it.

JavaScriptCore has been compiled to WASM though:

https://mbbill.github.io/JSC.js/

People usually ask why, the answer is usually for fun or for sandboxed plugins.


I imagine that, if one were feeling extremely masochistic, one could generate WASM, JIT-style, and load it as needed. The result may not perform well.


I assumed the JIT would emit WASM.


please don’t give them more ideas




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