<p>Next.js ships with <a href="https://nextjs.org/docs/basic-features/fast-refresh">Fast Refresh</a> which gives you instantaneous feedback on edits made to your React components.</p>
<p>This demos shows how the state of an auto incrementing value and a classic counter is preserved after edits or if there are errors.</p>
<h2>Preview</h2>
<p>Preview the example live on <a href="http://stackblitz.com/">StackBlitz</a>:</p>
<p><a href="https://stackblitz.com/github/vercel/next.js/tree/canary/examples/fast-refresh-demo"><img src="https://developer.stackblitz.com/img/open_in_stackblitz.svg" alt="Open in StackBlitz"></a></p>
<h2>Deploy your own</h2>
<p>Deploy the example using <a href="https://vercel.com?utm_source=github&#x26;utm_medium=readme&#x26;utm_campaign=next-example">Vercel</a>:</p>
<p><a href="https://vercel.com/new/git/external?repository-url=https://github.com/vercel/next.js/tree/canary/examples/fast-refresh-demo&#x26;project-name=fast-refresh-demo&#x26;repository-name=fast-refresh-demo"><img src="https://vercel.com/button" alt="Deploy with Vercel"></a></p>
<h2>How to use</h2>
<p>Execute <a href="https://github.com/vercel/next.js/tree/canary/packages/create-next-app"><code>create-next-app</code></a> with <a href="https://docs.npmjs.com/cli/init">npm</a> or <a href="https://yarnpkg.com/lang/en/docs/cli/create/">Yarn</a> to bootstrap the example:</p>
<pre><code>npx create-next-app --example fast-refresh-demo fast-refresh-demo-app
# or
yarn create next-app --example fast-refresh-demo fast-refresh-demo-app
</code></pre>
<p>Deploy it to the cloud with <a href="https://vercel.com/new?utm_source=github&#x26;utm_medium=readme&#x26;utm_campaign=next-example">Vercel</a> (<a href="https://nextjs.org/docs/deployment">Documentation</a>).</p>


Fast Refresh Demo (21)

Preview

Deploy your own

How to use