Issue #10177 has been updated by Yusuke Endoh. I guess the culture gap (not language gap) is leading to imbroglio in this case. http://en.wikipedia.org/wiki/High-_and_low-context_cultures Many Japanese people feel comfortable with "hash.key?(:foo)", because they are in a higher-context culture. -- Yusuke Endoh <mame / ruby-lang.org> ---------------------------------------- Feature #10177: Hash#has_key? and Hash#has_value? should be deprecated https://bugs.ruby-lang.org/issues/10177#change-48909 * Author: gogo tanaka * Status: Open * Priority: Normal * Assignee: * Category: lib * Target version: ---------------------------------------- I referred to this Matz's remark. http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-core/43765 And I agree with him, I supposed `Hash#has_key?` should be preferred over `Hash#key?`, so I replaced all of `Hash#has_key?` and `Hash#has_value?` in `lib/*` with `Hash#key?` and `Hash#value?` ---Files-------------------------------- Replace_Hash#has_something.PATCH (20.4 KB) -- https://bugs.ruby-lang.org/