class Array

Public Instance Methods

count_by_rule(&rule) click to toggle source

# File lib/tarvit-helpers/extensions/counter.rb, line 13
def count_by_rule(&rule)
  info_by_rule(->(x){
    x.count
  }){|x|
    rule.(x)
  }
end

info_by_rule(info, &rule) click to toggle source

# File lib/tarvit-helpers/extensions/counter.rb, line 3
def info_by_rule(info, &rule)
  counts = self.group_by{|x|
    rule.(x)
  }.to_a.map{|x|
    x[1] = info.(x[1])
    x
  }
  Hash[counts]
end