Classes which include Denumerable will get versions of map, select, and so on, which return a Denumerator, so that they work horizontally without creating intermediate arrays.
# File lib/facets/core/facets/denumerable.rb, line 13 def map Denumerator.new do |output| each do |*input| output.yield yield(*input) end end end
# File lib/facets/core/facets/denumerable.rb, line 33 def reject Denumerator.new do |output| each do |*input| output.yield(*input) unless yield(*input) end end end
# File lib/facets/core/facets/denumerable.rb, line 23 def select Denumerator.new do |output| each do |*input| output.yield(*input) if yield(*input) end end end
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