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Yes, historically Emscripten began before asm.js, targeting pure JS. That JS backend was replaced by an asm.js backend, which was later replaced by the current
by azakai 4y ago
Yes, historically Emscripten began before asm.js, targeting pure JS. That JS backend was replaced by an asm.js backend, which was later replaced by the current wasm backend (the wasm backend in upstream LLVM).
(But as already mentioned, JS is still supported today, using wasm2js.)