class method Prototype.K
Prototype.K(argument) → argument
-
argument
(Object
) – Optional argument...
Prototype.K
is Prototype's very own
identity function, i.e.
it returns its argument
untouched.
This is used throughout the framework, most notably in the Enumerable
module as a default value for iterators.
Examples
Prototype.K('hello world!');
// -> 'hello world!'
Prototype.K(200);
// -> 200
Prototype.K(Prototype.K);
// -> Prototype.K