typescript and react create app code example

Example 1: create react app typescript

npx create-react-app app-name --template typescript
# or using yarn
yarn create react-app app-name --template typescript

Example 2: add typescript in create react app

npm install --save typescript @types/node @types/react @types/react-dom @types/jest
# or
yarn add typescript @types/node @types/react @types/react-dom @types/jest