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<!DOCTYPE html>
<html>
<body>
​
Try to check this box: <input type="checkbox" id="myCheckbox">
​
<p>Toggling a checkbox is the default action of clicking on a checkbox. The preventDefault() method prevents this from happening.</p>
​
<script>
document.getElementById("myCheckbox").addEventListener("click", function(event){
  event.preventDefault()
});
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_event_preventdefault2 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 05 Jun 2019 14:05:15 GMT -->
</html>
​
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