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() { useEffect(() => { // This code will run after the component has rendered const element = document.getElementById('myElementId'); // Check if the element exists before accessing its content if (element) { const content = element.innerHTML; console.log(content); // You can log or use the content as needed } }, []); // The empty array [] as the second argument ensures this runs only once after initial render return ( <div className='container'> <h3>React Js Get Element by id</h3> <p id="myElementId">This is the content of the div.</p> </div> ); } ReactDOM.render(<App />, document.getElementById('app')); </script> <style> /* Container */ .container { font-family: Arial, sans-serif; max-width: 800px; margin: 0 auto; padding: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); text-align: center; } </style> </body> </html>