This came up on X where someone compared the load times: https://x.com/TheAlexLichter/status/1930977073931206928

The problem hook filters solve is getting rid of the JS-to-Rust overhead by only invoking a plugin call when it's necessary. For example in this case, we can add a hook filter, that only considers files which include .data:

    transform(code, id) {
      if (!id.endsWith('.data')) { }
    }

With a filter, this looks like this:

    transform: {
      filter: {
        id: /\.data$/
      },
      handler (code) { /* the actual transform handler code */ } 

The feature is also supported by Rollup 4.38.0+ and Vite 6.3.0+.

Docs: Rolldown
Docs: Vite