I’d like some clarification on the following simple examples.
class Foo
self
end # Foo
class << Foo
self
end # #Class:Foo
No surprise there. In the first case I’m defining the class and
returning self, which of course is the class, and in the second it’s
the singleton class.
class << Foo
def foo
“foo”
end
end
Now I can call Foo.foo as expected. It could have just as easily been
def Foo.foo
“foo”
end
However, I can’t do
class << Foo
foo
end
to call it. It results in “NameError: undefined local variable or
method `foo’ for #Class:Foo”. What’s the difference?
Pat