class method Class.create
Class.create([superclass][, methods...]) → Class
Class) – The optional superclass to inherit methods from.
Object) – An object whose properties will be "mixed-in" to the new class. Any number of mixins can be added; later mixins take precedence.
Class.create creates a class and returns a constructor function for
instances of the class. Calling the constructor function (typically as
part of a
new statement) will invoke the class's
Class.create accepts two kinds of arguments. If the first argument is
Class, it's used as the new class's superclass, and all its methods
are inherited. Otherwise, any arguments passed are treated as objects,
and their methods are copied over ("mixed in") as instance methods of the
new class. In cases of method name overlap, later arguments take
precedence over earlier arguments.
If a subclass overrides an instance method declared in a superclass, the
subclass's method can still access the original method. To do so, declare
the subclass's method as normal, but insert
$super as the first
argument. This makes
$super available as a method for use within the
To extend a class after it has been defined, use
For details, see the inheritance tutorial on the Prototype website.