온라인에서 React를 배우고 싶다면 다음과 같은 사이트를 추천합니다:
React Official Documentation: https://reactjs.org/docs/getting-started.html
FreeCodeCamp: https://www.freecodecamp.org/learn/front-end-libraries/react/
Udemy: https://www.udemy.com/topic/react-js/
Codecademy: https://www.codecademy.com/learn/introduction-to-javascript
Coursera: https://www.coursera.org/courses?query=react