from Hacker News

Static Hermes: Compile JavaScript to speed it up 300x (in microbenchmarks)

by unchar1 on 9/10/23, 8:38 PM with 18 comments

• by jitl on 9/10/23, 10:32 PM

  I wonder how this compares to v8 over the same code. Will v8 get this smart after running the benchmark? I’d test it myself but I’m on an iPhone right now. I wonder if static Hermes will ever end up at break-even or ahead of v8 - especially if doing a lot of FFI in WASM, Hermes might have a better shot at bypassing the memcopy/TextDecoder needed to interop between browser JS strings and WASM utf8 strings in other languages.

• by andrewstuart on 9/11/23, 2:13 AM

  There's not much sign of "Static Hermes" on the web. Appears to be a JavaScript compiler from facebook.

  "Static Hermes is the the next major version of Hermes, still under active development. It enables optional ahead-of-time native compilation of soundly typed JavaScript, using TypeScript or Flow type annotations."

  I find the AI images in this presentation to be quite distracting for some reason.

• by conaclos on 9/11/23, 3:43 PM

  Slides of the announcement of Static Hermes are available here [0]. If anyone has the video, this could be great!

  [0] https://speakerdeck.com/tmikov2023/static-hermes-react-nativ...

• by fergie on 9/11/23, 6:32 AM

  That was an interesting read, but why do Hermes (and React, React Native, etc) still use javascript as a compile target rather than Wasm?