What I liked about asm.js is that it's "just" javascript and you don't need any special way to load them, while with wasm you have the wasm file which you need

What I liked about asm.js is that it's "just" javascript and you don't need any special way to load them, while with wasm you have the wasm file which you need to load on the side, which is a bit clunkier. But eh it's a tiny thing