screen_rotation
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<!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> <script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.development.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/umd/react-dom.development.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script> </head> <body> <div id="app"></div> <script type="text/babel"> const { useState, useEffect } = React; function App() { const [orientation, setOrientation] = useState(''); useEffect(() => { function handleOrientationChange(event) { const { matches, media } = event; if (matches) { setOrientation(media); } } const mediaQueryPortrait = window.matchMedia('(orientation: portrait)'); const mediaQueryLandscape = window.matchMedia('(orientation: landscape)'); if (mediaQueryPortrait.matches) { setOrientation('portrait'); } else if (mediaQueryLandscape.matches) { setOrientation('landscape'); } mediaQueryPortrait.addListener(handleOrientationChange); mediaQueryLandscape.addListener(handleOrientationChange); return () => { mediaQueryPortrait.removeListener(handleOrientationChange); mediaQueryLandscape.removeListener(handleOrientationChange); }; }, []); return ( <div className='container'> <h3>React Js Get Device Orientation</h3> <p>Device Orientation: {orientation}</p> </div> ); } ReactDOM.render(<App />, document.getElementById('app')); </script> <style> .container { text-align: center; box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12), 0 2px 4px 0 rgba(0, 0, 0, 0.24); width: 600px; margin: 0 auto; padding: 20px; } h3 { font-size: 24px; margin-bottom: 10px; } p { font-size: 18px; } </style> </body> </html>