Next.js ships with Fast Refresh which gives you instantaneous feedback on edits made to your React components.
This demos shows how the state of an auto incrementing value and a classic counter is preserved after edits or if there are errors.
Quickly preview this example directly in your browser with StackBlitz:
Click any of the buttons below to start a new development environment to demo or contribute to the codebase without having to install anything on your machine:
Deploy the example using Vercel:
Execute create-next-app with npm or Yarn to bootstrap the example:
npx create-next-app --example fast-refresh-demo fast-refresh-demo-app
# or
yarn create next-app --example fast-refresh-demo fast-refresh-demo-appDeploy it to the cloud with Vercel (Documentation).