React.js v19 Tutorials in Hindi - 2025 - #26: React States: What is useState Hook & Why we need it in React

In React, state refers to an object that holds data or information about the component. State is managed within the component (just like variables declared in a function). However, unlike regular variables, when state changes, React re-renders the component to reflect these changes, keeping the user interface in sync with the data. A Hook is a special function that lets you “hook into” React features. For example, useState is a Hook that lets you add React state to function components. 👉 Source code & PPT access Free: https://github.com/thapatechnical/react-19-series-thapa-technical 👉 Here is the Complete Playlist: https://www.youtube.com/playlist?list=PLwGdqUZWnOp1Rab71vx2zMF6qpwGDB2Z1 ------------------------------------------------------------------------- Videos to Watch before learning ReactJS 👇 🔥🚀 Watch Best HTML Course 👉 https://youtu.be/5ccq_nLHneE 🔥🚀 Watch Best CSS Course 👉 https://youtu.be/MSICFljRcb4 ⭐️ JavaScript Basics Course Part 1: https://youtu.be/13gLB6hDHR8 ⭐️ JavaScript Advanced Course Part 2: https://youtu.be/YwsOCN8woA8 ------------------------------------------------------- 👉 Source code & PPT access Free: https://www.thapatechnical.com/2024/06/css-styling-in-react-js.html 👉 Watch React.js History in 10min: https://youtu.be/MiK2bFqhg1U 📢Get all my YouTube Videos Source Code at only 199₹ : https://thapatechnical.shop/source-code 📢Get your premium complete ecommerce website source code at no cost (Free) :👉https://www.thapatechnical.com/2024/03/build-complete-ecommerce-website-using.html ----------------------------------------------------- ✌️ Become Member, get access to perks, free Source code, & more.. https://www.youtube.com/channel/UCwfaAHy4zQUb2APNOGXUCCA/join 🚀 Check my Instagram to Connect with me: https://www.instagram.com/thapatechnical 🗨️ Discord Server Link for Programmer to Hangout: https://discord.gg/MdScmCsua6 ----------------------------------------------------- ⌛TIMELINE ⌛ 0:00 - Introduction to States in React.js 2:00 - Creating an Increment Button Using a Normal Variable in React 4:55 - Understanding Why the Value is Not Updating but Appears in the DOM 9:10 - Syntax and Example of the useState Hook 17:40 - The Importance of States in React.js 19:20 - Conclusion