Next.js · question
Question 3 of 94
What is the purpose of the `_app.js` file?
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Re-explain
The _app.js file is a custom App component that wraps all page components. It's used to:
- Keep state when navigating between pages
- Add global CSS
- Inject additional data into pages
- Handle global error boundaries
- Add common layout components
function MyApp({ Component, pageProps }) {
return (
<div>
<GlobalHeader />
<Component {...pageProps} />
<GlobalFooter />
</div>
);
}
export default MyApp;
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