React/Suspense
React / Topic

Suspense

Learn how React Suspense improves the loading experience by allowing components to wait for asynchronous resources while displaying fallback UI.

Difficulty

Intermediate

Read time

18 min

Format

Concept + Code

Focus

Interview ready
Concepts
Suspense
React
Loading
Async

01 / Foundation

Understand the concept

Suspense lets React display a fallback UI while waiting for asynchronous operations like lazy-loaded components or server-rendered data.

It helps create smoother user experiences by coordinating loading states instead of manually managing loading flags throughout the application.

02 / Implementation

Basic Suspense Example

suspense.tsx
import { Suspense, lazy } from "react";

const UserProfile = lazy(() => import("./UserProfile"));

export default function App() {
  return (
    <Suspense fallback={<p>Loading profile...</p>}>
      <UserProfile />
    </Suspense>
  );
}

04 / Interview

Test your understanding