map.include? x any.respond_to?

gistfile1.rb

require 'ostruct'
require 'benchmark'

net_objs = []

class NetworkObject < OpenStruct
·
end

0.upto(1000) { |n| net_objs.push NetworkObject.new(:name=>"foo #{n}",:removed=>[true,false].sample) }·


Benchmark.bm do |x|
  x.report { net_objs.map(&:removed?).include?(true) }
  x.report { net_objs.any? { |o| o.respond_to?(:removed?) && o.removed? } }
end


[~] ruby bmark.rb
       user     system      total        real
   0.010000   0.000000   0.010000 (  0.001116)
   0.000000   0.000000   0.000000 (  0.000385)
[~]