npx create-react-app my-react-app
npx create-react-app my-app --template typescript
npm -v
npm start
KÜtüphane Kurma
npm install --save paketinAdi
npm run test
npx create-react-app my-react-app
npx create-react-app my-app --template typescript
npm -v
npm start
KÜtüphane Kurma
npm install --save paketinAdi
npm run test