Can anyone explain me why this piece of code does not work in Eclipse. I tried to compile the code on this site http://jsfiddle.net and it's working.
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://ift.tt/kTyqzh">
<script type="text/javascript">
$(document).ready(function () {
var checkbox = $('#checker');
var dependent = $('#day_number');
if (checkbox.attr('checked') !== undefined){
dependent.show();
} else {
dependent.hide();
}
checkbox.change(function(e){
dependent.toggle();
});
});
</script>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<input type="checkbox" id="checker"><br>
<input type="text" id="day_number">
</body>
</html>
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