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<!DOCTYPE html> <html> <body> <p>Click the Start button to output "Hello" after 2 seconds.</p> <p>In this example, we also output the parameters that were passed to the alertFunc() function (does not work in IE9 and earlier).</p> <button onclick="myStartFunction()">Start</button> <p id="demo"></p> <p id="demo2" style="color:red;"></p> <script> var myVar; function myStartFunction() { myVar = setTimeout(alertFunc, 2000, "First parameter", "Second parameter"); } function alertFunc(param1, param2) { document.getElementById("demo").innerHTML += "Hello "; document.getElementById("demo2").innerHTML = "Parameters passed to alertFunc(): <br>" + param1 + "<br>" + param2 + "<br>"; } </script> </body> </html>