HTML-and-JavaScript/JavaScript_tenth.html at main · skn1998/HTML-and-JavaScript · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>setInterval and setTimeout in JavaScript</title>
</head>
<body>
    <h1 id="time"> Time: </h1>
    <h2>setTimeout</h2>
    <p>Allows us to run the function only once after the given interval.</p>
    <h2>clearTimeout</h2>
    <p>Allows us to stop the call of the setTimeout function if not executed.</p>

    <h2>setInterval</h2>
    <p>Allows us to repeat a function after the given interval.</p>
    <h2>clearInterval</h2>
    <p>Allows us to stop the call of the setInterval function.</p>


    <script>
        function greet(name)
        {
            console.log("Hello", name + "!");
        }

        let id = setTimeout(greet, 5000, "Saurav"); // time in milliseconds and function name only
        // it returns an unique id

        clearTimeout(id);

        let id1 = setInterval(greet, 2000, "Saurav");

        clearTimeout(id1);

        function display()
        {
            let time = document.getElementById('time');
            let date = new Date();
            time.innerHTML = "Time: " + date;
        }

        setInterval(display, 1000);


    </script>

    </body>
</html>