fix: useDebounce race condition (#139) #141
Open
+97
−29
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Rewrite
useDebounce
to gracefully handle new debounced calls while a previous call is running.We isolate all actual callback invocations from each other by using a new set of
timeout
,promise
,resolve
andreject
when their previously associated callback begins to run.Fixes #139
Current broken reproduction:
https://stackblitz.com/edit/sveltejs-kit-template-default-bpdvwu?file=src%2Froutes%2F%2Bpage.svelte
New working reproduction:
https://stackblitz.com/edit/sveltejs-kit-template-default-uvrj4j?file=src%2Froutes%2F%2Bpage.svelte
This PR should also greatly improve DX for #134 which I would implement after this is merged :)