catch and throw don't have to be directly in the same scope. : catch « Statement « Ruby

1. Ruby
2. Statement
3. catch

catch and throw don't have to be directly in the same scope.

# throw works from methods called from within a catch block:

def generate_random_number_except_123
  x = rand(1000)
  throw :finish if x == 123
end

catch(:finish) do
  1000.times { generate_random_number_except_123 }
  puts "Generated 1000 random numbers without generating 123!"
end

 

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