comando para criar um aplicativo React
npx create-react-app my-app
cd my-app
npm start
Proud Panther
npx create-react-app my-app
cd my-app
npm startnpm install -g react-cli react
npx create-react-app app-name
cd app-name
npm startnpx create-react-app hello-world
cd hello-world && npm startnpx create-react-app my-app
cd my-app
yarn startnpx create-react-app yourprojectname
#or
yarn create react-app yourprojectname