React Js Open Input file onclick button

<!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, useRef } = React;
    function App() {
      const fileInput = useRef(null);
      const handleButtonClick = () => {
        fileInput.current.click();
      };

const handleFileChange = (event) => {
        const selectedFile = event.target.files[0];
        if (selectedFile) {
          // Do something with the selected file
          console.log('Selected file:', selectedFile);
        }
      };

return (
        <div className="container">
          <h3>React Js Open Input file onclick Button</h3>
          <input
            type="file"
            ref={fileInput}
            style={{ display: 'none' }}
            onChange={handleFileChange}
          />
          <button onClick={handleButtonClick}>Choose File</button>
        </div>
      );
    }
    ReactDOM.render(<App />, document.getElementById("app"));
  </script>

.container {
      margin: 0 auto;
      width: 600px;
      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);
      padding: 20px;
    }

button {
      padding: 10px 20px;
      background-color: #007bff;
      color: #fff;
      border: none;
      border-radius: 4px;
      cursor: pointer;
    }

button:hover {
      background-color: #0056b3;
    }
  </style>
</body>

</html>