From: "matz (Yukihiro Matsumoto)" Date: 2012-03-28T01:25:51+09:00 Subject: [ruby-core:43767] [ruby-trunk - Feature #5644][Feedback] add Enumerable#exclude? antonym Issue #5644 has been updated by matz (Yukihiro Matsumoto). Status changed from Assigned to Feedback from that logic, don't we need to add antonyms to every predicate methods? could you show us why include? is special? Matz. ---------------------------------------- Feature #5644: add Enumerable#exclude? antonym https://bugs.ruby-lang.org/issues/5644#change-25276 Author: sunaku (Suraj Kurapati) Status: Feedback Priority: Normal Assignee: matz (Yukihiro Matsumoto) Category: Target version: Please add Enumerable#exclude? as antonym of Enumerable#include? This allows me to construct Boolean expressions more pleasantly: if File.exist? some_file and not some_list.include? some_file Can be written as: if File.exist? some_file and some_list.exclude? some_file Thanks for your consideration. -- http://bugs.ruby-lang.org/