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<!DOCTYPE html>
<html>
<body>
​
<p>Click the first button to alert "Hello" after waiting 3 seconds.</p>
<p>Click the second button to prevent the first function to execute. (You must click it before the 3 seconds are up.)</p>
​
<button onclick="myFunction()">Try it</button>
<button onclick="myStopFunction()">Stop the alert</button>
​
<script>
var myVar;
​
function myFunction() {
  myVar = setTimeout(function(){ alert("Hello"); }, 3000);
}
​
function myStopFunction() {
  clearTimeout(myVar);
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_win_cleartimeout by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:04:10 GMT -->
</html>
​
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