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Re:Replacing JavaScript Hot Path with WebAssembly by markdog12 on Thursday February 14, 2019 @06:50PM (#19167217)
With threads, SIMD, GC, direct DOM access and more, tools like Emscripten and wasm_pack.....yes

https://hacks.mozilla.org/2018/10/webassemblys-post-mvp-futu...

https://www.youtube.com/watch?v=VsYL4Z9sRec

Re:Replacing JavaScript Hot Path with WebAssembly by amelius on Friday February 15, 2019 @05:45AM (#19169882)
And don't forget support for lock-free programming (memory fence instructions), useful when you want to implement your own specific concurrent GC, for example.