class Array
Public Instance Methods
percent_of(digits = nil) { |elem| ... }
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# File lib/denmark/monkeypatches.rb, line 6 def percent_of(digits = nil) raise "Select the items you want to count using a block that returns a boolean" unless block_given? return 0 if self.empty? count = self.size match = 0 self.each do |elem| match += 1 if yield(elem) end if digits ((match.to_f / count.to_f) * 100).round(digits) else ((match.to_f / count.to_f) * 100).to_i end end