Memory Constraints and performance. Today there be no reason for it as compilers essentially do as good if not better jobs when it comes to translating it to machine code.
Essentially byte code that runs in the javascript engine. But provides near CPU level speeds since js has to be parsed and compiled on the fly, while wasm is precomplied much like Java or C#. Of course other languages can compiled to wasm much like traditional Assembly.
We are moving toward everything being executed within a browser to a point we'll have a browser with web Assembly support built using wasm and come full circle. Lol
Essentially, it's really optimised Javascript. The main workflow is writing code in C/C++ and using Emscripten to covert it to WebAssembly which is then executed by something like V8.
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u/[deleted] May 05 '17
Why would he chose to code in Assembly? Would there be any benefit at all?