Issue #6670 has been updated by yhara (Yutaka HARA). duerst (Martin Dürst) wrote: > Instead of this proposal, what about adding some/most/all of the Array methods to Enumerator? It is not easy to define behavior of Enumerator#[]. For example: File.open(path){|f| ls = f.lines p lines[0] #=> Prints first line p lines[0] #=> Prints nil, if #[] is equivalent to #to_a[pos] } ---------------------------------------- Feature #6670: str.chars.last should be possible https://bugs.ruby-lang.org/issues/6670#change-34063 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/