From: "shyouhei (Shyouhei Urabe)" Date: 2012-03-30T11:30:12+09:00 Subject: [ruby-core:43920] [ruby-trunk - Feature #6225] Hash#+ Issue #6225 has been updated by shyouhei (Shyouhei Urabe). I object. No binary operations shall be called + unless the operation is symmetric. For historical reasons there are some asymmetric +s in Ruby, but that is not a indulgence for you to add more. ---------------------------------------- Feature #6225: Hash#+ https://bugs.ruby-lang.org/issues/6225#change-25438 Author: trans (Thomas Sawyer) Status: Assigned Priority: Normal Assignee: matz (Yukihiro Matsumoto) Category: core Target version: 2.0.0 Strings and Arrays can be combined with #+. I don't see any reason not to allow Hashes to do so as well. class Hash alias :+ :merge end -- http://bugs.ruby-lang.org/