Learn all about the jQuery function jQuery.makeArray().
$() returns a jQuery object that has many of the properties of an array (a length, the
 array access operator, etc.), but is not exactly the same as an array and lacks some of an array’s built-in methods (such as
Note that after the conversion, any special features the object had (such as the jQuery methods in our example) will no longer be present. The object is now a plain array.