Re: Why the use of a pound (#) sign with Enumerable

These sorts of things are somewhat difficult to google for (I tried to =
find a nice article to reference, but couldn't find one quickly.), so =
hopefully this helps...

The methods themselves do not have a '#' in front of them. =20

The '#' is usually used to indicate an instance method and often '.' is =
used to indicate a class/module method.

So given the following class:

class FooBar
  def self.say_hello
    puts 'hello from a class method'
  end

  def say_hello
    puts 'hello from an instance method'
  end
end

FooBar#say_hello references the instance method.
FooBar.say_hello references the class method.

Robert Jackson

  -- twitter:  rwjblue
  -- github: rjackson


On Jul 1, 2013, at 4:02 PM, Ruby Student <[e-mail]> wrote:

> Team,
>=20
> Please be easy on me, but I was wondering why methods that belong to =
the Enumerable class have a # (pound) sign. For instance:=20
>=20
> 	=95 #all?
> 	=95 #any?
> 	=95 #chunk
> 	=95 #collect
> Etc.
>=20
> What is the meaining of the # there?
>=20
> Thank you
>=20
> --=20
> Ruby Student