Speed Up Your React App with Code Splitting
SPEED UP YOUR REACT APPLICATION WITH CODE SPLITTING
• УСКОРЬ React-приложение с помощью Разделен...
In this video, we'll explore one of the simplest and most effective ways to speed up a React application: **Code Splitting**.
I'll show you, using a real-world example, how to split a JavaScript bundle into separate parts and load code only when the user actually needs it.
We'll cover:
• What is Code Splitting and why is it important?
• How dynamic import() works in JavaScript
• How to use React.lazy to lazy load components
• How to split code between app pages
• How to lazy load regular modules and functions
• How this impacts bundle size and performance
In practice, we'll create a small application with several pages (Home, Settings, Analytics), add lazy loading, and see how the browser loads chunks only when the user navigates to the page.
If you want to write fast and scalable React applications, understanding code splitting is a must-have engineering skill.
Timestamps:
00:00 Introduction
00:14 React Application
01:23 What is Code Splitting
02:00 Dynamic Function Import
02:55 Lazy Page Loading
03:40 Suspense Component
05:12 Named Imports
06:12 Lazy Component Loading
07:06 Conclusions
Technologies in the video:
React
JavaScript
Dynamic import()
React.lazy
Code Splitting
Material UI
Chart.js
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