Created
December 30, 2012 01:29
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How enumerable classes work in Ruby
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class CustomEnumerable | |
include Enumerable | |
def initialize(items) | |
@items = items | |
end | |
def each(&block) | |
puts __callee__ | |
@items.each {|item| yield item } | |
end | |
end | |
enum = CustomEnumerable.new([1, 2, 3, 4, 5, 6, 7, 8]) | |
enum.map {|e| e } | |
enum.to_a | |
enum.take(1) |
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