{
  "id": 16623596,
  "title": "Lazy Loading in React",
  "url": "https://urgent.news/2026/10/26/lazy-loading-in-react",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-10-26T16:12:48.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/abimanyu_p_9e75124634d2a4/lazy-loading-in-react-12ep"
  },
  "original_language": "en",
  "account": "Lazy loading in React is a method that loads components only when they are required, rather than loading all components simultaneously when the application starts. This technique improves the performance of the application by decreasing the initial JavaScript bundle size. For instance, consider a web application with three pages: Home, About, and Dashboard. If lazy loading is not used, the JavaScript code for all three pages would be included in the initial bundle, even if the user never visits the About or Dashboard pages. However, when lazy loading is implemented, React loads the Home page first and subsequently loads the About or Dashboard page when the user navigates to them. The primary advantages of lazy loading include faster initial loading times, smaller bundle sizes, an enhanced user experience, loading components as needed, and better management of large applications with numerous pages and features.\n\nTo implement lazy loading in React, developers can utilize two built-in features provided by React: React.lazy() and Suspense. Here's how it works:\n\n1. Suppose you have a component called Dashboard.jsx. First, import the necessary modules from React:\n\n```javascript\nimport { lazy, Suspense } from 'react';\n```\n\n2. Define the Dashboard component using lazy loading:\n\n```javascript\nconst Dashboard = lazy(() => import('./Dashboard'));\n```\n\n3. In your main component, such as App.jsx, use lazy loading and Suspense to load the Dashboard component only when needed:\n\n```javascript\nfunction App() {\nreturn (\n<div>\n<h1>My React Application</h1>\n<Suspense fallback={<p>Loading Dashboard...</p>}>\n<Dashboard />\n</Suspense>\n</div>\n);\n}\n```\n\nWhen the user navigates to the Dashboard page, React loads the Dashboard component's code only at that moment, rather than including it in the initial bundle. This results in faster load times, a smaller bundle size, and a better overall user experience.",
  "summary": "What Is Lazy Loading? Lazy loading in React is a technique that loads a component only when it is needed instead of loading all components at the beginning of the application. It helps improve application performance by reducing the amount of JavaScript that needs to be loaded initially. For example, imagine an application with three pages: Home About Dashboard Without lazy loading, the…",
  "key_points": [
    "Lazy loading loads components only when required",
    "Improves performance by decreasing initial bundle size",
    "Implemented using React.lazy() and Suspense"
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}