Ruby Language Enumerators Custom enumerators
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Example
Let's create an Enumerator for Fibonacci numbers.
fibonacci = Enumerator.new do |yielder|
a = b = 1
loop do
yielder << a
a, b = b, a + b
end
end
We can now use any Enumerable method with fibonacci:
fibonacci.take 10
# => [1, 1, 2, 3, 5, 8, 13, 21, 34, 55]
