HTML Event attribute: onchange
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The HTML onchange attribute specifies the event
that is triggered when an element’s value changes. It applies to all visible elements.
EXAMPLE:
HTML USED IN THIS EXAMPLE:
<!DOCTYPE html>
<html> <!-- Copyright (c) Nematrian Limited 2018 -->
<head></head>
<body>
onchange: try changing text in this input field
<input type="text" value="hello" onchange="myOnchange()"><br>
<script>
function myOnchange() {alert("Changing value of element");}
</script>
</body>
</html>
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