React js Disable button on click

<!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">
        const { useState } = React;
        function App() {
            const [isDisabled, setIsDisabled] = useState(false);

const disableButton = () => {
                setIsDisabled(true);
            };

return (
                <div>
                    <h3>React js disable button on click</h3>
                    <button disabled={isDisabled} onClick={disableButton}>
                        Send
                    </button>
                </div>
            );
        }
        ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
        h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }

button {
            background-color: #007bff;
            color: #fff;
            border: none;
            border-radius: 0.25rem;
            padding: 0.5rem 1rem;
            cursor: pointer;
        }

button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }
    </style>
</body>

</html>

 
<!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">
        const { useState } = React;
        function App() {
            const [isDisabled, setIsDisabled] = useState(false);
​
            const disableButton = () => {
                setIsDisabled(true);
            };
​
            return (
                <div>
                    <h3>React js disable button on click</h3>
                    <button disabled={isDisabled} onClick={disableButton}>
                        Send
                    </button>
                </div>
            );
        }
        ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
        h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }
​
        button {
            background-color: #007bff;
            color: #fff;
            border: none;
            border-radius: 0.25rem;
            padding: 0.5rem 1rem;
            cursor: pointer;
        }
​
        button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }
    </style>
</body>
​
</html>