Introduction
Code splitting is a technique that improves the performance of React applications by breaking the bundle into smaller chunks that are loaded only when needed. This helps reduce the initial load time and enhances the user experience.
Why Use Code Splitting?
- Improved Performance: Reduces initial JavaScript payload size.
- Faster Load Times: Loads only necessary code when required.
- Efficient Resource Utilization: Minimizes unused code execution.
Implementing Code Splitting in React
React provides built-in support for code splitting via lazy
and Suspense
.
1. Using lazy
for Lazy Loading
- The
React.lazy
orlazy
function allows you to load a component dynamically only when it is needed. Example:
import React, { Suspense, lazy } from "react";
const LazyComponent = lazy(() => import("./LazyComponent"));
function App() {
return (
React Code Splitting
Loading...}>