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<html><body><h1>JavaScript Functions</h1><h2>setTimeout() with a Callback</h2><p>Wait 3 seconds (3000 milliseconds) for this page to change.</p><h1 id="demo"></h1><script>setTimeout(function() { myFunction("I love You !!!"); }, 3000);function myFunction(value) { document.getElementById("demo").innerHTML = value;}</script></body></html>