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<html><body><h1>JavaScript Functions</h1><h2>setInterval() with a Callback</h2><p>Using setInterval() to display the time every second (1000 milliseconds).</p><h1 id="demo"></h1><script> setInterval(myFunction, 1000); function myFunction() { let d = new Date(); document.getElementById("demo").innerHTML = d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds(); }</script></body><!-- /js/tryit.asp?filename=tryjs_callback6 Thu, 06 Feb 2025 19:15:32 GMT --></html>