React useEventCallback Hook
React useEventCallback hook for stable event callbacks. Solve useCallback dependency issues with TypeScript support for Next.js applications.
Frustrated with useCallback dependency arrays?
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Ever used useCallback and ended up with a massive dependency array that changes on every render anyway? You know the drill—add props to deps, state to deps, then realize your "optimized" callback is recreating constantly and causing the re-renders you tried to prevent. This free open source React useEventCallback custom hook handles all that callback stability complexity so you can focus on your app logic instead of wrestling with useCallback dependency hell in your React applications.
useEventCallback showcase
Stable callbacks with fresh closure access:
This free open source React hook simplifies callback optimization with TypeScript support for modern JavaScript applications. Whether you're building forms, event handlers, or component APIs in your Next.js projects, this React hook keeps your callbacks stable and performant.
Installation
npx shadcn@latest add https://www.shadcn.io/registry/use-event-callback.jsonnpx shadcn@latest add https://www.shadcn.io/registry/use-event-callback.jsonpnpm dlx shadcn@latest add https://www.shadcn.io/registry/use-event-callback.jsonbunx shadcn@latest add https://www.shadcn.io/registry/use-event-callback.jsonWhy most callback optimization implementations suck
Look, you could keep fighting with useCallback dependency arrays, adding every prop and state variable, then watching your "optimized" callbacks recreate on every render anyway. But after debugging the third "why is my child component still re-rendering" issue, you'll appreciate having this solved properly.
Most developers add everything to the useCallback dependency array, causing the callback to recreate constantly in React applications. Or they skip dependencies and get stale closures that reference old state values. Some try to minimize dependencies and introduce subtle bugs in TypeScript components.
The React hook gives you a stable callback reference that never changes, while ensuring your function always has access to the latest values in Next.js projects. No dependency arrays, no stale closures, no re-render cascades.
Real talk—useCallback is great in theory, but in practice it often makes things worse in JavaScript applications. This React hook gives you the performance benefits without the maintenance nightmare.
This free open source React hook handles the callback optimization boilerplate while you focus on building features. Whether you're creating React applications, Next.js projects, or TypeScript codebases, this custom hook keeps your event handlers rock solid.
Features
- Stable callback references preventing unnecessary child component re-renders with React.useCallback optimization in React applications
- Fresh closure access ensuring callbacks always have access to latest state values and props in TypeScript components
- Render safety with built-in protection against calling callbacks during component rendering in Next.js projects
- TypeScript generics supporting flexible argument types and return values with complete type inference
- Memory efficient using useRef and useIsomorphicLayoutEffect for optimal performance patterns in JavaScript development
- SSR compatible designed for Next.js server-side rendering with proper hydration handling in React frameworks
- Free open source designed for modern React development workflows
When you'll actually use this
Real talk—this isn't for every callback in React applications. For simple onClick handlers that don't access state, regular functions are fine. But when you need stable callbacks that access changing values, this React hook shines in Next.js projects.
Perfect for:
- Form event handlers - Stable input callbacks with fresh state access built with TypeScript
- Performance optimization - Preventing unnecessary re-renders in component trees using React patterns
- Async operations - Event handlers with delayed execution in JavaScript applications
- Component libraries - Stable API callbacks for library consumers in React development
- State synchronization - Event callbacks that always access current state in Next.js applications
- Complex interactions - Multi-step operations requiring fresh closure access in TypeScript projects
- Child component callbacks - Passing stable functions to expensive child components in React frameworks
- Memoized components - Callbacks for React.memo wrapped components in JavaScript development
API Reference
useEventCallback
With defined callback:
useEventCallback<Args extends unknown[], R>(
fn: (...args: Args) => R
): (...args: Args) => RWith optional callback:
useEventCallback<Args extends unknown[], R>(
fn: ((...args: Args) => R) | undefined
): ((...args: Args) => R) | undefinedParameters
| Parameter | Type | Description |
|---|---|---|
fn | (...args: Args) => R | undefined | The callback function to memoize |
Return Value
Returns a memoized callback that maintains a stable reference while always accessing fresh values from closures.
Type Parameters
| Parameter | Description |
|---|---|
Args | Array of argument types for the callback function |
R | Return type of the callback function |
Common gotchas
Render phase protection: The React hook includes a safety check that throws an error if you try to call the callback during the render phase in TypeScript components. This prevents React warnings and infinite render loops.
Callback reference stability: Once created, the returned function never changes identity in React applications. This is the whole point, but worth remembering for debugging in Next.js projects.
Fresh closures always: The callback always has access to the latest values from your component's scope in JavaScript development. No stale closure bugs, but also no "snapshot" behavior if you need it.
SSR timing considerations: The React hook uses useIsomorphicLayoutEffect for proper SSR timing in TypeScript projects, but the callback won't be available during server-side rendering.
Automatic type inference: The hook preserves your function's argument and return types automatically in React development. No need for manual type annotations in most cases.
Memory leak prevention: Unlike useCallback with changing dependencies, this hook doesn't create new function instances, preventing memory accumulation in Next.js applications.
Related hooks you will also like
useDebounceCallback
Debounce function calls while maintaining stable callback references
useBoolean
Boolean state management with memoized callback helpers
useCounter
Counter state with memoized increment/decrement callbacks
useCopyToClipboard
Clipboard operations with stable callback management
useEventListener
Event listener management with automatic cleanup
useIsomorphicLayoutEffect
SSR-safe layout effects that useEventCallback relies on
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