React.js v19 Tutorials in Hindi - 2025 - #52: useEffect Hook with Dependency Array in React JS: Learn with 3 Practical Examples

In this video, you'll master the useEffect hook with a dependency array in React JS through three practical examples. Understand what the useEffect hook is, how it works, and why it's crucial for managing side effects in your React applications. Learn the importance of the dependency array and how it controls the execution of useEffect. By the end of this video, you'll be able to efficiently use useEffect to handle data fetching, subscriptions, and more, making your React apps more robust and efficient. For instance, see how fetching data can be a side effect and how to structure your folder for better code management. 💸 Get All My YouTube Videos' Source Code for just ₹199! Grab Now - https://thapatechnical.shop/source-code 🧑‍💻 Access React Todo App Repo in GitHub: https://github.com/thapatechnical/thapa_technical_reactTodo.git 🔥 Access React Course Source Code, PPT & Notes here for Free : https://www.thapatechnical.com/2024/06/delete-elements-and-auto-update-tasks.html 📺 Discover React.js History in Just 10 Minutes - https://youtu.be/MiK2bFqhg1U 📺 Watch the complete Playlist here : https://www.youtube.com/playlist?list=PLwGdqUZWnOp1Rab71vx2zMF6qpwGDB2Z1 ------------------------------------------------------------------------ 🚀 Boost Your Skills with these Pre-Requisite Videos: 🔗 Best HTML Course - https://youtu.be/5ccq_nLHneE 🔗 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 ------------------------------------------------------------------------ 💸 Build Your Own E-commerce Website for Free! - https://www.thapatechnical.com/2024/03/build-complete-ecommerce-website-using.html ------------------------------------------------------------------------ ✌️ Join Us! 🚀 Become a Member: Unlock perks, free source code, and more Join Now : https://www.youtube.com/channel/UCwfaAHy4zQUb2APNOGXUCCA/join 📷 Connect on Instagram: https://www.instagram.com/thapatechnical 🗨️ Join Our Discord Server: Hang out with fellow programmers Discord Link: https://discord.gg/MdScmCsua6 ------------------------------------------------------------------------ ⌛TIMELINE⏳ 0:00 Introduction 0:25 What is useEffect Hook 1:15 useEffect Hook Syntax 2:55 Detailed Definition of useEffect 5:00 Understanding Side Effects with Example 8:05 Why Fetching Data is a Side Effect 10:50 Folder Structure for Better Management 12:15 Example 1: Basic useEffect Usage 14:30 Example 2: useEffect with Dependency Array 18:10 Example 3: Advanced useEffect Usage 21:20 Next Video Update 22:00 Outro