React Fiber Is Confusing..So I Made It Simple

🚀 Welcome to the ultimate React tutorial where we dive deep into the core of React's rendering engine — React Fiber! If you've ever wondered how React works under the hood, especially the shift from the traditional Virtual DOM to the new Fiber architecture, you're in the right place.

In this React Fiber tutorial, I’ll break down complex concepts using easy-to-understand diagrams, real-world examples, and a visual walkthrough of the current tree vs the work-in-progress (WIP) tree.

👉 Whether you're a beginner or an experienced developer, this tutorial will help you finally understand how React Fiber works, why it was introduced, and how it's changing the game for front-end performance.

🗣️ Bonus: This video is also explained in simple terms and includes explanations in Hindi, making it a great resource for developers looking for React Fiber in Hindi.

00:00 Introduction
00:50 What we will discuss today
01:46 Dom rendering and re-rendering in browser
03:31 What is Virtual DOM
05:00 What is Reconciliation
05:50 Diffing Algorithm
07:35 What is React Fiber?
08:00 Why React Fiber?
09:04 Types of Fiber trees
10:36 How Fiber tree is created
13:35 how Work in Progress Tree is Created
15:00 Fiber reconciliation phases
16:18 Mounting Phase in React Fiber
21:28 Updating Phase
23:34 Phases of Update
24:35 Work In Progress Tree for Update Phase
29:30 Let’s summarize the process again
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Видео React Fiber Is Confusing..So I Made It Simple канала Sofia Goyal