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<!DOCTYPE html>
<html>
<head>
<script src="https://code.jquery.com/jquery-2.1.3.min.js " type="text/javascript"></script>
</head>
<body>
<input type="text" id="ID"></div><br>
<div class="class1"></div>
<script>
$(document).ready(function () {
$("#ID").bind('input propertychange', function() {
var len = $("#ID").val().length; //input
$(".class1").text(len); //div
});
});
</script>
</body>
</html>
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