Udemy – React Advanced Concepts: Re-Rendering, Performance & More 2025-1

Apr 18, 2025 - 19:37

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React Advanced Concepts: Re-Rendering, Performance & More. This course is designed to take you beyond the basics and into the advanced mechanics of React. We’ll explore the hidden intricacies of the React rendering engine, performance optimization techniques, and architectural patterns that top React developers use to build scalable and efficient applications. This course will help you gain a deeper understanding of React’s inner workings and performance optimization techniques.

What you will learn:

Unprecedented understanding of React State: You’ll learn exactly how React manages state, how it triggers updates, and how to avoid common state-related problems.
Deep understanding of Re-Rendering: You will understand what re-rendering really means, when React decides to re-render a component, and how to avoid unnecessary renders.
React Decision Making Process: Mount, Re-Render, and Unmount: You will gain a clear understanding of when a component mounts, when it re-renders, and when it unmounts, and learn how to control this behavior for better performance.
Memoization and performance optimization: You will learn techniques like useMemo, useCallback, and React.memo to optimize expensive computations and avoid unnecessary updates.
Reconciliation and Diffing Algorithm: You’ll learn how React efficiently updates the DOM behind the scenes and how understanding this process can help you write better-performing components.
Higher-Order Components (HOC): You’ll explore how to increase component performance using HOCs and compare them to modern alternatives like hooks.
Context API and Advanced State Management: You will get a comprehensive introduction to React’s Context API, fixing some performance issues.
useRef and ForwardRef: You will learn how to manage references, avoid unnecessary re-renders, and manipulate the DOM directly when needed.
Managing Race Conditions and Async Issues: You’ll learn how to avoid common problems when dealing with asynchronous operations in React and ensure a smooth and bug-free user experience.
How to Optimize Performance in React Apps: You’ll learn real-world techniques to improve app performance, reduce unnecessary rendering, and make your React apps faster and more efficient.