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<!DOCTYPE html>
<html>
<body>
​
<p>This example demonstrates how to pass parameter values when using the 
addEventListener() method.</p>
​
<p>Click the button to perform a calculation.</p>
​
<button id="myBtn">Try it</button>
​
<p id="demo"></p>
​
<script>
var p1 = 5;
var p2 = 7;
​
document.getElementById("myBtn").addEventListener("click", function() {
  myFunction(p1, p2);
});
​
function myFunction(a, b) {
  var result = a * b;
  document.getElementById("demo").innerHTML = result;
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_element_addeventlistener_param by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:02:17 GMT -->
</html>
​
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