React Js convert string to Key-Value Object

<!DOCTYPE html>
<html lang="en">

<body>
  <div id="app"></div>
  <script type="text/babel">
    const { useState, useEffect } = React;
    function App() {
      const stringArray = ["name:John", "age:30", "city:New York"];
      const [keyValueObject, setKeyValueObject] = useState({});

useEffect(() => {
        const updatedKeyValueObject = {};

stringArray.forEach(item => {
          const [key, value] = item.split(':');
          if (key && value) {
            updatedKeyValueObject[key] = value;
          }
        });

setKeyValueObject(updatedKeyValueObject);
      }, []);

return (
        <div className='container'>
          <h3 className='title'>React Js convert string to Key-Value Object</h3>
          <p className='text'>Array of String{JSON.stringify(stringArray)}</p>
          <pre className='code'>Key Pair Object : {JSON.stringify(keyValueObject, null, 2)}</pre>
        </div>

);
    }
    ReactDOM.render(<App />, document.getElementById("app"));
  </script>
  <style>
    /* Styles for the container */
    .container {
      padding: 20px;
      border-radius: 10px;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
      max-width: 600px;
      margin: 0 auto;
      text-align: center;
    }

/* Styles for the title */
    .title {
      font-size: 24px;
      font-weight: bold;
      margin-bottom: 10px;
      color: #333;
    }

/* Styles for the text paragraph */
    .text {
      font-size: 16px;
      color: #666;
      margin-bottom: 20px;
    }

/* Styles for the code block */
    .code {
      background-color: #f0f0f0;
      padding: 15px;
      border-radius: 5px;
      font-family: monospace;
      white-space: pre-wrap;
      font-size: 14px;
      color: #333;
      overflow-x: auto;
    }
  </style>
</body>

</html>