Optimizing React Performance: Memoization, Lazy Loading, and Code Splitting Explained
React is known for building fast and interactive user interfaces, but as your application grows, performance can degrade due to unnecessary re-renders, large bundle sizes, and inefficient data fetching. To keep your React apps performant and user-friendly, it's essential to implement optimization techniques. In this article, we'll break down three powerful techniques that can drastically improve performance: Memoization Lazy Loading Code Splitting 1. Memoization in React What is Memoization? Memoization is a technique to cache the result of expensive function calls and return the cached result when the same inputs occur again. In React , memoization prevents unnecessary re-rendering of components or recalculation of values. Tools for Memoization in React: React.memo() useMemo() useCallback() React.memo() Wraps a functional component to prevent re-renders unless props change. const Child = React.memo(({ name }) => { console.log("Rendering Child"); ret...