What Is useReducer? The useReducer hook is an alternative to useState for managing complex state logic.It uses a reducer function to update state based on actions. Basic Syntax const [state,…

useDebugValue allows you to display debug information for custom hooks in React DevTools.It is only for development and does not affect production performance. Basic Syntax useDebugValue(value, formatFunction); value → value…

useLayoutEffect is similar to useEffect but runs synchronously after DOM updates.It’s useful for reading layout, calculating measurements, or synchronizing DOM changes. Basic Syntax useLayoutEffect(() => { // effect logic return…

Lazy loading delays the loading of images or components until they are about to appear in the viewport.This improves page load speed and performance. Native Lazy Loading Example function App()…

The useImperativeHandle hook customizes the ref value exposed by a child component when using forwardRef.It allows the parent to access specific functions or values. Basic Syntax useImperativeHandle(ref, () => ({…

Controlled components have their state managed by React.The value of input elements is bound to state and updated via onChange. import React, { useState } from "react"; function ControlledInput() {…

Both Refs and Forward Refs are used to access DOM elements, but they have different use cases: Refs: Used inside a component to access its own DOM element. Forward Ref:…

React Strict Mode vs Error Boundary Both tools improve React app quality but serve different purposes: Strict Mode: Development tool to highlight potential problems like unsafe lifecycle methods and side…

What Are Render Props? Render Props is a technique for sharing code between components using a prop whose value is a function.It allows dynamic rendering and logic reuse. Basic Syntax…

What Are Higher-Order Components (HOC)? A Higher-Order Component (HOC) is a function that takes a component and returns a new component.It is used to reuse component logic without repeating code.…