Posted By

Shamaoke on 12/29/10

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ruby

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Last Edited at 12/29/10 02:29pm

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Call a block or a method

/ Published in: Ruby

Call a block if it's given otherwise call a method.

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# encoding: utf-8
 
class Parent
  def one
    'ok!'
  end
end
 
class Child < Parent
  def initialize(&block)
    @do = block || method(:one)
  end
 
  def do
    @do.call
  end
end
 
child_one = Child.new
child_two = Child.new { 'ok two!' }
 
puts [
  child_one.do, #=> ok!
  child_two.do  #=> ok two!
]

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