add typescript to a react project code example

Example 1: create react app with typescript config

npx create-react-app my-app --template typescript

# or

yarn create react-app my-app --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

Example 3: create new react app using typescript

create-react-app app-name --scripts-version=react-scripts-ts