Writing a Method that Accepts a Block : Method Arguments « Method « Ruby






Writing a Method that Accepts a Block


def call_twice
  puts "I'm about to call your block."
  yield
  puts "I'm about to call your block again."
  yield
end

call_twice { puts "Hi, I'm a talking code block." }
# I'm about to call your block.
# Hi, I'm a talking code block.
# I'm about to call your block again.
# Hi, I'm a talking code block.

 








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4.Function with two parameters
5.Method with three parameters
6.Pass full arrays to methods in Ruby, and return arrays as well
7.Default Arguments
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9.Block as the third parameter
10.Raise exception based on parameter type
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