From: nobu@...
Date: 2018-07-03T12:57:44+00:00
Subject: [ruby-core:87770] [Ruby trunk Bug#14863] Array#join with empty array returns empty string always in US-ASCII encoding

Issue #14863 has been updated by nobu (Nobuyoshi Nakada).


May I close this?

----------------------------------------
Bug #14863: Array#join with empty array returns empty string always in US-ASCII encoding
https://bugs.ruby-lang.org/issues/14863#change-72793

* Author: xsimov (Xavier Sim��)
* Status: Feedback
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 2.4.2
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
Calling
~~~
irb(main):001:0> [].join.encoding
=> #<Encoding:US-ASCII>
~~~ 
returns an empty string and that empty string is always in US-ASCII encoding.

The expected result is that the returned empty string would be in UTF-8 since it seems to be the default for Ruby strings since 2.0.





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