Is WebAssembly magic pixie dust?

21 April 2021 • 10:30

Can you really replace JavaScript with Wasm and watch things get instantly faster? Is WebAssmembly really magic pixie dust? Surma write:

V8 is really good at executing JavaScript. While WebAssembly can run faster than JavaScript, it is likely that you will have to hand-optimize your code to achieve that. I could see this balance shift once there is wide-spread support for SIMD and Threads and a good developer experience around utilizing them.

I’m keep being amazed at how far the JavaScript runtime has come. I’m not sure why I’m still suprised, but I am.