React

useReducer is like useState, but it’s better when: ✅ Syntax – reducer = a function that receives current state +

In real-world apps, you often need to display a list of items — like users, products, tasks, etc. In React,

Sometimes, you want to show or hide parts of your UI depending on: React lets you do that easily using

✅ What is useRef? In React, useRef is a special hook that lets you: 1. Access and interact with DOM

✅ What is Context API? React Context API allows you to share data across components without passing props manually through

✅ What is “Lifting State Up”? When two or more sibling components need to share the same state, you should

React lets you handle user actions just like in JavaScript, but in a React-friendly, component-driven way. 🎯 What Are Events?

In JavaScript (and React), when you submit a form, the browser by default: That’s the default behavior of an HTML

In React, components are the foundation of everything you build. A component is just a JavaScript function that returns JSX.

🧠 What is JSX? JSX is a syntax extension for JavaScript that looks like HTML. It’s used in React to