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<!DOCTYPE html>
<html>
<body>
​
<p>This example demonstrates how to assign an "onkeyup" event to an input element.</p>
​
<p>Press a key inside the text field and release it to set the text to uppercase.</p>
​
Enter your name: <input type="text" id="fname" onkeyup="myFunction()">
​
<script>
function myFunction() {
  var x = document.getElementById("fname");
  x.value = x.value.toUpperCase();
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_onkeyup_html by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 05 Jun 2019 14:04:38 GMT -->
</html>
​
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