From: "yhara (Yutaka HARA)" Date: 2012-08-15T21:30:38+09:00 Subject: [ruby-core:47212] [ruby-trunk - Feature #6670] str.chars.last should be possible Issue #6670 has been updated by yhara (Yutaka HARA). =begin Hello, I wrote a patch for String#lines, #chars, #bytes and #codepoints. * https://github.com/ruby/ruby/pull/158.diff Seemingly the following methods also need to be fixed (right?) * IO#lines, chars, bytes, codepoints * StringIO#lines, chars, bytes, codepoints * ARGF.lines, chars, bytes * Is it intentional that ARGF.codepoints is missing? =end ---------------------------------------- Feature #6670: str.chars.last should be possible https://bugs.ruby-lang.org/issues/6670#change-28893 Author: yhara (Yutaka HARA) Status: Assigned Priority: Normal Assignee: yhara (Yutaka HARA) Category: core Target version: 2.0.0 =begin Since str.chars returns an Enumerator, we need explicit to_a for some operations: str.chars.to_a.last str.chars.to_a[1,3] But often I forget that and write: str.chars.last str.chars[1,3] Besides that, I feel it is hard to explain why to_a is needed here when I'm writing artilcles for Ruby beginners. Simplest way to achieve this is to make String#chars (also #lines, #bytes and #codepoints) return an Array. Since arrays have most of the methods defined in Enumerator, this will not be a big change. For programs like str.chars.next, you can use each_char instead. =end -- http://bugs.ruby-lang.org/