[Proposal] add clean up callback on ref directive

[Moon-DaeSeung]

What is it about?

Like React19,

callback can notice dom's unmount timing

What's the motivation for this proposal?

Problems you are trying to solve:

• I try to support ssgoi.dev on qwik
• react, vue, svelte can let me know when dom is unmounted ( ref in react, use: in svelte ...)

Goals you are trying to achieve:

• I want to transition anaimtion when dom is unmounted

Any other context or information you want to share:

• https://tkdodo.eu/blog/ref-callbacks-react-19-and-the-compiler

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Proposed Solution / Feature

What do you propose?

const refCallback = (el) => {
//called when mounted
return () => {
//called when unmount (detached)
}
}

Code examples

import { transition } from "@ssgoi/core"

<div ref={transition({ ... }}) />

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Links / References

No response