[qbg]

In theory, someone could create a common bytecode as a library. Such a library would probably use the Relooper algorithm from Emscripten (https://github.com/kripken/emscripten) and JIT the bytecode to Javascript that can then be eval'd for near Javascript-level speed.

[chc]

The whole idea is to get better performance than current JavaScript interpreters allow. Making something slower than JavaScript is the opposite of why people want a common bytecode.

[memvov]

It can be implemented first on Emscripten to see if people like it; later it can be standardized.