001-lambda-factorial.rb

# this works fine, but it uses a local variable with no purpose
factorial = lambda do |n|
 return 1 if n <= 1 
 n * factorial.call(n - 1)
end
puts factorial.call(5)

002-anonymous-factorial.rb

puts lambda do |n|
 return 1 if n <= 1 
 n * SELF.call(n - 1)
end.call(5)

# what do you use for 'SELF' that actually works?
# or, is there an another way to do this (while still using anonymous functions)?