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<!DOCTYPE html>
<html>
<body>
​
<p>Modify the text in the input field, then click outside the field to fire the onchange event.</p>
​
Enter some text: <input type="text" name="txt" value="Hello" onchange="myFunction(this.value)">
​
<script>
function myFunction(val) {
  alert("The input value has changed. The new value is: " + val);
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/tags/tryit.asp?filename=tryhtml5_ev_onchange2 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:09:26 GMT -->
</html>
​
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