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@lifo
Created June 18, 2009 16:49
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module Enumerable
def return
each do |i|
value = yield(i)
return value if value
end
nil
end
end
h = {0 => 'a', 2 => 'b'}
[1,2,3].return {|x| h[x]} # => b
[4,5,6].return {|x| h[x]} # => nil
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