Created
February 18, 2010 01:11
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| >> fibs = Enumerator.new { |y| a, b = 0, 1; loop { y.yield a; b, a = a, a+b } } | |
| >> fibs.first(10) | |
| => [0, 1, 1, 2, 3, 5, 8, 13, 21, 34] | |
| >> fibs.take_while {|i| i < 60 } | |
| => [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55] |
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