리액트 hello world 예제 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Hello React! class App extends React.Component { render() { return Hello world! } } ReactDOM.render(, document.getElementById('root')) Colored by Color Scripter cs IT/react 2024.02.04