<!DOCTYPE html>
<html>
<body>
<p>Click the Start button to output "Hello" once every 2 seconds.</p>
<p>In this example, we also output the parameters that were passed to the alertFunc() function.</p>
<button onclick="myStartFunction()">Start</button> <button onclick="myStopFunction()">Stop</button>
<p id="demo"></p>
<p id="demo2" style="color:red;"></p>
<script>
var myVar;
function myStartFunction() {
myVar = setInterval(function(){ alertFunc("First parameter", "Second parameter"); }, 2000);
}
function alertFunc(param1, param2) {
document.getElementById("demo").innerHTML += "Hello ";
document.getElementById("demo2").innerHTML = "Parameters passed to alertFunc(): <br>"
+ param1 + "<br>" + param2 + "<br>";
}
function myStopFunction() {
clearInterval(myVar);
}
</script>
</body>
</html>