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<!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>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_win_setinterval_param2 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 05 Jun 2019 14:06:50 GMT -->
</html>
​
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