docs(preact-query): improve JSDoc examples across hooks and options factories - #11301
docs(preact-query): improve JSDoc examples across hooks and options factories#11301sukvvon wants to merge 23 commits into
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…'isError' handling
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Included review availability: Your plan provides up to 10 included reviews per hour; 9 remain after this review. 📝 WalkthroughWalkthroughThe PR updates Preact documentation examples and source references. Examples now use complete components, current hook patterns, optional data access, filtered status indicators, mutation rendering, and combined query state handling. Runtime implementations remain unchanged. ChangesPreact documentation examples
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: ⚪ Minimal · up to This change makes documentation examples runnable and consistent without changing published behavior; no actionable merge-blocking risk remains beyond normal checks and review. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 3 functions across 7 files. (1 skipped: 1 unsupported.) ✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Inline comments:
In `@packages/preact-query/src/useMutationState.ts`:
- Around line 124-132: The saved-posts useMutationState example should count
only completed successful mutations. In
packages/preact-query/src/useMutationState.ts lines 124-132, add a
success-status filter alongside the mutation key; apply the same correction to
docs/framework/preact/reference/functions/useMutationState.md lines 77-85 so the
generated reference matches.
- Around line 28-29: Update the useIsMutating example wording from “fetching” to
“in progress” in packages/preact-query/src/useMutationState.ts at lines 28-29,
then regenerate docs/framework/preact/reference/functions/useIsMutating.md at
lines 42-43 so the reference example matches the corrected terminology.
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📒 Files selected for processing (11)
docs/framework/preact/reference/functions/infiniteQueryOptions.mddocs/framework/preact/reference/functions/queryOptions.mddocs/framework/preact/reference/functions/useIsFetching.mddocs/framework/preact/reference/functions/useIsMutating.mddocs/framework/preact/reference/functions/useMutationState.mddocs/framework/preact/reference/functions/useQueries.mdpackages/preact-query/src/infiniteQueryOptions.tspackages/preact-query/src/queryOptions.tspackages/preact-query/src/useIsFetching.tspackages/preact-query/src/useMutationState.tspackages/preact-query/src/useQueries.ts
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…'infiniteQueryOptions' example
… status in 'useMutationState' examples
…ueryOptions' example
…utationState' example
…ult' in 'useMutation' Promise.allSettled example
…ionState' example
…tes in 'useInfiniteQuery' examples
…ead of flat '<p>' tags
…ated 'Elsewhere' comment in 'queryOptions'/'infiniteQueryOptions' examples
…'infiniteQueryOptions' to 'useQuery'/'useInfiniteQuery'
…efined refs across remaining hooks
sukvvon
changed the title
…ueryOptions' examples instead of an unexplained literal
…inite-query 'skipToken' examples
… 'queryOptions'/'useQuery'/'infiniteQueryOptions'/'useInfiniteQuery' examples
…e errors instead of hiding it
1 participant
🎯 Changes
Swept every
@exampleblock across preact-query's hooks and options factories. Five kinds of issues, all interrelated since fixing one often touched the same block as another:1. Examples that weren't runnable code
Several
@exampleblocks called hooks or referenced options factories outside of a component — invalid code, since hooks can only be called inside a component. Wrapped every remaining example in a function component:useIsFetching.ts: first example called the hook at module scope.useQueries.ts: both examples called the hook at module scope. Also addedisErrorhandling to both (previously only the loading/success states were shown), fixed a missingkeyin the per-item render branch, and renamedcombine'sresultsparameter topostQueriesfor consistency with the first example's variable name (following the same reasoning as docs(preact-query): rename 'results' to 'postQueries' in 'useSuspenseQueries' example #11299).useMutationState.ts(coversuseIsMutatingtoo): all four examples called the hooks at module scope. Also filtered bystatus: 'success'where the example readsmutation.state.data, and renamed variables (data→savedPosts,variables→pendingVariables,latest→latestSavedPost) introduced by the componentization to match what they hold.queryOptions.ts: two of the three examples only defined the options factory without a consuming component. For the "works with every API" example, dropped theuseSuspenseQuerycall rather than cramming two Suspense-incompatible hooks into one component — the imperative-API calls (queryClient.query,getQueryData) already carry that part of the point.infiniteQueryOptions.ts: the base example only defined the options factory without a consuming component.useInfiniteQuery.ts: both examples only showed thefetchNextPagebutton without rendering fetched pages or handling loading/error states — addedisPending/isErrorhandling and rendereddata.pages, matching theisErrorhandling added touseQueries.ts.2. List examples rendered as flat, unstructured markup
data.map(...)results were rendered as bare<p key={...}>tags with no wrapping element — not representative of a real list UI. Changed every such example acrossqueryOptions.ts,infiniteQueryOptions.ts,useQuery.ts,useInfiniteQuery.ts,useSuspenseQuery.ts, anduseSuspenseInfiniteQuery.tsto wrap items in<ul>/<li>. Also replaced an undefined<Spinner />reference inuseSuspenseQuery.tswith the loading-text convention already used elsewhere (useQuery.ts), and replaced two undefined variable references (id,postIdused outside the component that scoped them) inqueryOptions.ts/infiniteQueryOptions.ts's imperative-call snippets with literal values.3. Prefetch examples with an unlocated call site
queryOptions.ts/infiniteQueryOptions.tshad examples showingqueryClient.query(...)/queryClient.infiniteQuery(...)right after a component definition, introduced only by a// Elsewhere, e.g. to warm the cache before rendering <X>comment — the call looked attached to the component but nothing showed where it actually runs. Moved the "parameterized factory" examples' prefetch call intouseQuery.ts/useInfiniteQuery.tsas a new@example, showing a concrete call site: a sibling link component that warms the cacheonMouseEnter.queryOptions.ts/infiniteQueryOptions.tsnow just show the options object working with the imperative API, with a pointer to the hook's file for the full scenario.4. Missing
skipTokencoverageuseQuery,queryOptions,useInfiniteQuery, andinfiniteQueryOptionseach have a catch-all overload (UseQueryOptions/UndefinedInitialDataOptions/UndefinedInitialDataInfiniteOptions) that's the only one of the three permittingqueryFn: skipToken— but none of them had an example showing it, despite the docs guide (disabling-queries.md) recommendingskipTokenoverenabled: falsefor type-safe conditional disabling. Added askipTokenexample to each file's catch-all overload, following the samepostId != null ? () => fetchPost(postId) : skipTokenpattern the guide uses. Since the query is conditionally disabled, these examples checkisLoadingrather thanisPending—isFetchingisfalsewhile disabled, soisLoading(isPending && isFetching) doesn't show a stale loading state;isPendingalone would. Verified each example compiles under the package's owntsconfig(via a throwaway file insrc/, removed after) before committing, since TypeScript overload resolution means a wrong choice of which options type getsskipTokensilently fails to typecheck as an example rather than as a build error.5. Missing
isPending/isErrorhandling inqueryOptions.ts,infiniteQueryOptions.ts,useQuery.ts, anduseInfiniteQuery.tsSeveral examples across these four files read
datawithout first branching onisPending/isError(orstatus), which either doesn't typecheck without an extra?./.mismatch or silently rendersundefined. Audited every example in these four files and added the missing branches:isPendingbefore accessingdata, narrowing it to non-undefinedwithout an optional chain.useQuery.ts's cache-seeding, paginated, and hover-prefetch examples) were left as-is — showing data immediately, without a loading state, is the point of those examples, not an oversight.initialDataexamples (queryOptions.ts,infiniteQueryOptions.ts,useInfiniteQuery.ts) needed a different fix: these overloads exist specifically sodatastays defined even if a refetch fails, so anisErrorearly return that replaced the list with an error message was undermining the overload's own point. Changed these three to render the list and the error side by side instead.Regenerated the corresponding reference docs with
pnpm run generate-docs.Out of scope for all of the above but included in this PR:
useMutation.ts's existingPromise.allSettledexample (already inside a component) had itsresults/resultvariables renamed toaddResults/addResult, since the surroundinguseMutationState.tsexamples were being renamed in the same pass for the same reason (matching what the variable holds).✅ Checklist
pnpm run test:pr, or these tests do not apply to this pull request.🚀 Release Impact