React Js get key of selected value from Dropdown

<!DOCTYPE html>
<html>

<body>
  <div id="app"></div>
  <script type="text/babel">
    const { useState } = React;

const App = () => {
     const [selectedOption, setSelectedOption] = useState('');

const options = [
        { key: '1', value: 'option1', label: 'Option 1' },
        { key: '2', value: 'option2', label: 'Option 2' },
        { key: '3', value: 'option3', label: 'Option 3' },
        // Add more options as needed
      ];

const handleDropdownChange = (event) => {
        const selectedValue = event.target.value;
        setSelectedOption(selectedValue);

// Find the corresponding object from the options array
        const selectedOptionObject = options.find((option) => option.value === selectedValue);

if (selectedOptionObject) {
          const selectedOptionKey = selectedOptionObject.key;
          console.log('Selected option key:', selectedOptionKey);
        }
      };

return (
        <div className='container'>
          <h2>React Js get key of selected value from Dropdown</h2>
          <h3>Selected Option: {selectedOption}</h3>
          <select onChange={handleDropdownChange}>
            <option value="">Select an option</option>
            {options.map((option) => (
              <option key={option.key} value={option.value}>
                {option.label}
              </option>
            ))}
          </select>
        </div>
      );
    }

ReactDOM.render(<App />, document.getElementById('app'));
  </script>
  <style>
    /* Styles for the container and button */
    .container {
      max-width: 500px;
      margin: 0 auto;
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }

/* Styling for the select element */
    .container select {
      width: 100%;
      padding: 10px;
      margin-bottom: 10px;
      border: 1px solid #ccc;
      border-radius: 4px;
      font-size: 16px;
      outline: none;
    }

/* Styling for the option elements */
    .container option {
      font-size: 16px;
    }
    button {
      background-color: #007bff;
      color: #fff;
      border: none;
      padding: 10px 20px;
      border-radius: 4px;
      cursor: pointer;
      font-size: 16px;
      transition: background-color 0.3s ease;
    }

/* Hover effect for the button */
    button:hover {
      background-color: #0056b3;
    }
  </style>
</body>

</html>

xxxxxxxxxx
 
<!DOCTYPE html>
<html>
​
<head>
  <meta charset="UTF-8" />
  <script src="https://unpkg.com/react@17.0.2/umd/react.production.min.js"></script>
  <script src="https://unpkg.com/react-dom@17.0.2/umd/react-dom.production.min.js"></script>
  <script src="https://unpkg.com/@babel/standalone@7.14.7/babel.min.js"></script>
</head>
​
<body>
  <div id="app"></div>
  <script type="text/babel">
    const { useState } = React;
​
    const App = () => {
     const [selectedOption, setSelectedOption] = useState('');
​
      const options = [
        { key: '1', value: 'option1', label: 'Option 1' },
        { key: '2', value: 'option2', label: 'Option 2' },
        { key: '3', value: 'option3', label: 'Option 3' },
        // Add more options as needed
      ];
​
      const handleDropdownChange = (event) => {
        const selectedValue = event.target.value;
        setSelectedOption(selectedValue);
​
        // Find the corresponding object from the options array
        const selectedOptionObject = options.find((option) => option.value === selectedValue);
​
        if (selectedOptionObject) {
          const selectedOptionKey = selectedOptionObject.key;
          console.log('Selected option key:', selectedOptionKey);
        }
      };
​
      return (
        <div className='container'>
          <h2>React Js get key of selected value from Dropdown</h2>
          <h3>Selected Option: {selectedOption}</h3>
          <select onChange={handleDropdownChange}>
            <option value="">Select an option</option>
            {options.map((option) => (
              <option key={option.key} value={option.value}>
                {option.label}
              </option>
            ))}
          </select>
        </div>
      );
    }
​
    ReactDOM.render(<App />, document.getElementById('app'));
  </script>
  <style>
    /* Styles for the container and button */
    .container {
      max-width: 500px;
      margin: 0 auto;
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }
​
    /* Styling for the select element */
    .container select {
      width: 100%;
      padding: 10px;
      margin-bottom: 10px;
      border: 1px solid #ccc;
      border-radius: 4px;
      font-size: 16px;
      outline: none;
    }
​
    /* Styling for the option elements */
    .container option {
      font-size: 16px;
    }
    button {
      background-color: #007bff;
      color: #fff;
      border: none;
      padding: 10px 20px;
      border-radius: 4px;
      cursor: pointer;
      font-size: 16px;
      transition: background-color 0.3s ease;
    }
​
    /* Hover effect for the button */
    button:hover {
      background-color: #0056b3;
    }
  </style>
</body>
​
</html>