Initial implementation #1
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… operations in React and package setup
WalkthroughThis update introduces a new React hooks package, including its source code, configuration, and documentation. The main features are two custom hooks— Changes
Sequence Diagram(s)sequenceDiagram
participant Component
participant useAsyncEffekt
participant EffectFunction
participant CleanupFunction
Component->>useAsyncEffekt: invoke with effect and deps
useAsyncEffekt->>EffectFunction: call effect({ isMounted, waitForPrevious })
EffectFunction-->>useAsyncEffekt: (optional) returns cleanup
useAsyncEffekt->>CleanupFunction: call cleanup on deps change or unmount
CleanupFunction-->>useAsyncEffekt: cleanup completes
sequenceDiagram
participant Component
participant useAsyncMemo
participant FactoryFunction
Component->>useAsyncMemo: invoke with factory and deps
useAsyncMemo->>FactoryFunction: call factory(isMounted)
FactoryFunction-->>useAsyncMemo: resolves value
useAsyncMemo-->>Component: returns memoized value (or undefined while loading)
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Docstrings generation was requested by @davemecha. * #1 (comment) The following files were modified: * `src/useAsyncEffekt.ts` * `src/useAsyncMemo.ts`
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Note Generated docstrings for this pull request at #2 |
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Actionable comments posted: 3
🧹 Nitpick comments (8)
.gitignore (1)
40-55: Add modern package-manager artefacts to ignore listTeams frequently use Yarn v2/3 (creates a
.yarn/folder) or pnpm (pnpm-lock.yaml). These artefacts should not be committed and are safe to ignore alongsidenode_modules/.# Dependency directories jspm_packages/ + +# Modern package-manager artefacts +.yarn/ +pnpm-lock.yaml.npmignore (1)
1-58: Redundant with thefilesfield – consider deletingBecause
package.jsonalready whitelists"dist", "README.md", "LICENSE", nothing else will be shipped.
Keeping a large.npmignoreincreases maintenance cost without changing the published output.Action: delete the file, or remove everything except an explanatory comment.
tsconfig.json (1)
3-18: Tighten compiler options for a library buildMinor tweaks can improve DX and tree-shaking:
"target": "es5", - "allowJs": true, + "allowJs": false, // no JS sources -> faster compile "skipLibCheck": true, @@ - "noEmit": false, + "module": "ES2015", // better for bundlers; emit CJS via build-step if needed + "noEmit": false, + "declarationMap": true, // jump-to-def in consumersFeel free to ignore if you intentionally target CommonJS with an additional bundler step.
package.json (2)
12-16: Add a simple test placeholder or remove thetestscriptCurrently the
testscript exits with code 1, breaking CI if someone runsnpm test.Quick fix:
- "test": "echo \"Error: no test specified\" && exit 1" + "test": "echo \"(no tests)\""Or wire up a test runner (e.g. vitest / jest) before publishing.
35-41: Pin peer-dependency range to avoid future breaking React releasesReact 20+ may introduce breaking changes. A capped range is safer:
- "react": ">=16.8.0" + "react": ">=16.8.0 <20"Consumers can still override the peer range if needed.
src/useAsyncMemo.ts (1)
27-31: Consider making error handling configurable.Logging errors directly to console might not be appropriate for all use cases, especially in production environments.
Consider accepting an optional error handler:
export function useAsyncMemo<T>( factory: (isMounted: () => boolean) => Promise<T> | T, - deps?: DependencyList + deps?: DependencyList, + options?: { onError?: (error: unknown) => void } ): T | undefined {Then use it in the catch block:
} catch (error) { if (isMountedRef.current) { - console.error("useAsyncMemo error:", error); + if (options?.onError) { + options.onError(error); + } else { + console.error("useAsyncMemo error:", error); + } // Keep the last successful value on error setValue(lastSuccessfulValueRef.current); } }src/useAsyncEffekt.ts (2)
101-105: Consider making error handling configurable.Similar to
useAsyncMemo, logging errors directly to console might not be appropriate for all use cases.Consider accepting an optional error handler in the hook signature to allow custom error handling strategies.
83-137: Consider adding AbortController support for cancellable operations.For effects that perform network requests or other cancellable operations, it would be beneficial to provide an AbortSignal.
Consider passing an AbortSignal to the effect function:
effect: ({ isMounted, waitForPrevious, + signal, }: { isMounted: () => boolean; waitForPrevious: () => Promise<void>; + signal: AbortSignal; }) => Promise<void | (() => void | Promise<void>)>,This would allow users to properly cancel fetch requests and other abortable operations when the effect is cleaned up.
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📒 Files selected for processing (8)
.gitignore(1 hunks).npmignore(1 hunks)README.md(1 hunks)package.json(1 hunks)src/index.ts(1 hunks)src/useAsyncEffekt.ts(1 hunks)src/useAsyncMemo.ts(1 hunks)tsconfig.json(1 hunks)
🧰 Additional context used
🪛 LanguageTool
README.md
[style] ~231-~231: You have already used this phrasing in nearby sentences. Consider replacing it to add variety to your writing.
Context: ...nditions in sequential operations - You need to guarantee cleanup order Don't use `wai...
(REP_NEED_TO_VB)
[uncategorized] ~235-~235: Use a comma before ‘and’ if it connects two independent clauses (unless they are closely connected and short).
Context: ...` when: - Effects can run independently and concurrently - You want maximum perform...
(COMMA_COMPOUND_SENTENCE)
🔇 Additional comments (3)
src/index.ts (1)
1-2: Barrel file looks goodRe-exporting the hooks from a single entry point keeps the public API clean. No issues spotted.
README.md (1)
1-365: Excellent documentation!The README provides comprehensive documentation with clear examples covering various use cases. The API reference accurately reflects the implementation, and the ESLint configuration section is particularly helpful for ensuring proper dependency tracking.
src/useAsyncEffekt.ts (1)
69-144: Well-designed sequential execution mechanism!The promise chaining implementation elegantly handles sequential effect execution and cleanup ordering. The
waitForPreviousfunctionality is particularly well-implemented.
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
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@coderabbitai review |
✅ Actions performedReview triggered.
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Just for clarity: I did not add the error handling suggestions, since this would change the signature of the functions too much and it would lose the linting support. |
Summary by CodeRabbit
New Features
useAsyncEffektfor managing async side effects with cleanup and sequential execution, anduseAsyncMemofor memoizing asynchronous computations with dependency tracking.Documentation
Chores
.gitignore,package.json, and TypeScript configuration files to support project setup and build processes.