créer une application
npx create-react-app my-app
cd my-app
npm start
Proud Panther
npx create-react-app my-app
cd my-app
npm start
npx create-react-app app-name
cd app-name
npm start
npx create-react-app@latest your-project-name --use-npm
yarn create react-app my-appCopied
npx --ignore-existing create-react-app .