React Format Number with Commas Thousand Separators

<!DOCTYPE html>
<html>

<body>
    <div id="app"></div>
    <script type="text/babel" data-presets="env,react">
        const { useState } = React;

function App() {
            const [number, setNumber] = useState('');

const handleChange = (event) => {
                const { value } = event.target;

// Remove any existing commas from the input
                const sanitizedValue = value.replace(/,/g, '');

// Format the number with commas
                const formattedValue = Number(sanitizedValue).toLocaleString();

setNumber(formattedValue);
            };

return (
                <div className='container'>
                    <h3>React Js Format Number as Comma Separator</h3>
                    <input
                        type="text"
                        value={number}
                        onChange={handleChange}
                    />
                    <p>Number: {number}</p>
                </div>
            );
        }

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

h3 {
            color: #333;
            font-size: 24px;
            margin-bottom: 20px;
        }

input {
            padding: 10px;
            width: 100%;
            margin-bottom: 10px;
            box-sizing: border-box;
            border-radius: 4px;
        }

input:focus {
            outline: none;
            box-shadow: 0 0 3px rgba(0, 123, 255, 0.5);
        }

p {
            font-size: 18px;
            color: #777;
        }
    </style>
</body>

</html>

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<!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" data-presets="env,react">
        const { useState } = React;
​
        function App() {
            const [number, setNumber] = useState('');
​
            const handleChange = (event) => {
                const { value } = event.target;
​
                // Remove any existing commas from the input
                const sanitizedValue = value.replace(/,/g, '');
​
                // Format the number with commas
                const formattedValue = Number(sanitizedValue).toLocaleString();
​
                setNumber(formattedValue);
            };
​
            return (
                <div className='container'>
                    <h3>React Js Format Number as Comma Separator</h3>
                    <input
                        type="text"
                        value={number}
                        onChange={handleChange}
                    />
                    <p>Number: {number}</p>
                </div>
            );
        }
​
        ReactDOM.render(<App />, document.getElementById("app"));
    </script>
​
    <style>
        .container {
            margin: 0 auto;
            width: 500px;
            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;
        }
​
        h3 {
            color: #333;
            font-size: 24px;
            margin-bottom: 20px;
        }
​
        input {
            padding: 10px;
            width: 100%;
            margin-bottom: 10px;
            box-sizing: border-box;
            border-radius: 4px;
        }
​
        input:focus {
            outline: none;
            box-shadow: 0 0 3px rgba(0, 123, 255, 0.5);
        }
​
        p {
            font-size: 18px;
            color: #777;
        }
    </style>
</body>
​
</html>