Q21. How does `useReducer` works? Explain with an example
The `useReducer` hooks works similarly to Redux, where: * You define a **reducer function** to handle state transitions. * You dispatch actions to update the state. **Cou...
Technical Question Bank · Peer-Reviewed
Search and filter frequently asked interview questions across technical, programming, and behavioral domains. Tailor your interview preparation by difficulty for freshers or experienced developers (28 available).
The `useReducer` hooks works similarly to Redux, where: * You define a **reducer function** to handle state transitions. * You dispatch actions to update the state. **Cou...
Yes, multiple useEffect hooks are allowed and recommended when you want to separate concerns. ```jsx useEffect(() => { // Handles API fetch }, []); useEffect(() => { // H...
**Custom Hooks** in React are JavaScript functions that allow you to **extract and reuse component logic** using React’s built-in Hooks like `useState`, `useEffect`, etc....
Custom hooks allow you to **extract and share stateful logic** between components without changing their hierarchy. The state itself is not shared—each component using th...
The `useDebugValue` hook is used to **display a label** for custom hooks in **React DevTools**. It helps developers debug custom hooks by showing meaningful information. ...
Following best practices ensures your hooks are predictable, maintainable, and bug-free. #### 1. **Follow the Rules of Hooks** - Only call hooks at the top level (not ins...
These hooks simplify form handling with Server Actions in React 19. #### useFormState Manages form state and handles server responses: ```jsx 'use client' import { useFor...
Both **Higher-Order Components (HOCs)** and **Hooks** let you reuse logic across components, but they solve that problem in very different ways. | Aspect | Higher-Order C...
HireXTech uses essential storage to remember your study preferences and third-party advertising cookies via Google AdSense in compliance with GDPR. You can choose to enable essential cookies only or accept all cookies. Read our Privacy Policy.