Is there an alternative to React useLayoutEffect

[omar-mohamed-khallaf]

radix is a rust port for radix-ui.

Looking at collapsible implementation, it uses react useLayoutEffect, so is there a way to do the same in leptos?

[gbj]

I haven't really used React much.

The one-line description of useLayoutEffect says "useLayoutEffect is a version of useEffect that fires before the browser repaints the screen."

That sounds like a RenderEffect to me.

[omar-mohamed-khallaf]

Is there a reason why it's not stored in the reactive system?

[gbj]

Yes; because it doesn't need to be, and because ensuring that it's canceled when it's dropped is really useful for the renderer to ensure that memory isn't being leaked.

If you want to store it it's quite easy, you can just do something like on_cleanup(move || drop(my_effect))