From: eregontp@... Date: 2019-01-29T10:42:43+00:00 Subject: [ruby-core:91317] [Ruby trunk Feature#11076] Enumerable method count_by Issue #11076 has been updated by Eregon (Benoit Daloze). For this kind of method, I wish we would implement it in Ruby even in MRI: it's much simpler, more readable, and every Ruby implementation could use it. ---------------------------------------- Feature #11076: Enumerable method count_by https://bugs.ruby-lang.org/issues/11076#change-76567 * Author: haraldb (Harald B��ttiger) * Status: Open * Priority: Normal * Assignee: * Target version: ---------------------------------------- I very often use `Hash[array.group_by{|x|x}.map{|x,y|[x,y.size]}]`. Would be nice with to have a method called `count_by`: ~~~ruby array = ['aa', 'aA', 'bb', 'cc'] p array.count_by(&:downcase) #=> {'aa'=>2,'bb'=>1,'cc'=>1} ~~~ -- https://bugs.ruby-lang.org/ Unsubscribe: