React Format Number with Commas Thousand Separators

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <script src="https://unpkg.com/react@17.0.2/umd/react.development.js"></script>
    <script src="https://unpkg.com/react-dom@17.0.2/umd/react-dom.development.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">
      function formatNumberWithHyphen(number) {
        // Convert the number to a string and remove any non-digit characters
        const cleanNumber = String(number).replace(/\D/g, "");

// Define the number of digits in each group
        const digitsInGroup = 3;

// Split the cleanNumber into groups of digits from right to left
        const groups = [];
        let startIndex = cleanNumber.length;
        while (startIndex > 0) {
          const endIndex = startIndex;
          startIndex = Math.max(0, startIndex - digitsInGroup);
          groups.unshift(cleanNumber.slice(startIndex, endIndex));
        }

// Join the groups with hyphens and return the formatted string
        return groups.join("-");
      }

function FormatNumberApp() {
        const numberToFormat = 1234567890;

return (
          <div className='container'>
            <h3>React js format number - hypen seperated</h3>
            <p>Original number: {numberToFormat}</p>
            <p>Formatted number: {formatNumberWithHyphen(numberToFormat)}</p>
          </div>
        );
      }

ReactDOM.render(<FormatNumberApp />, document.getElementById("app"));
    </script>