Private Class method

TODO

Private Instance Method#

  • Private instance method is more popular
class Animal
private
def eat
p "I eat"
end
end
Animal.new.eat
# Output:
$ruby main.rb
main.rb:11:in `<main>': private method `eat' called for #<Animal:0x005636bc9bf3b8> (NoMethodError)
  • This makes sense, because we are calling a private method, from outside the class.

Private Class Method:#

class Animal
private
def self.eat
p "I eat"
end
end
Animal.eat
# Output:
$ruby main.rb
"I eat"

  • This doesn't make sense, because it was supposed to throw an error, right?

  • private_class_method is what we are looking for here.

class Animal
def self.eat
p "I eat"
end
private_class_method :eat
end
Animal.eat
# Output:
$ruby main.rb
main.rb:13:in `<main>': private method `eat' called for Animal:Class (NoMethodError)

Resources:#

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