tests whether an object contains any properties
Description
.isPlainObject() tests whether an object contains
any properties, but must be of an Object instance.
So an empty string will return false in this case:
Example
<!DOCTYPE html>
<html>
<head>
<script src="http://yourServer.com/jQuery/jquery.min.js"></script>
<script>
console.log($.isPlainObject("")); // false
console.log($.isPlainObject({})); // true
console.log($.isPlainObject(new Object)); // true
</script>
</head> <!--from ww w . j a v a2s . com-->
<body>
<p>Your tags here</p>
</body>
</html>