From: postmodern.mod3@...
Date: 2015-09-10T19:43:45+00:00
Subject: [ruby-core:70717] [Ruby trunk - Bug #11520] [Open] Inconsistent behavior in Array#compact!

Issue #11520 has been reported by Hal Brodigan.

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Bug #11520: Inconsistent behavior in Array#compact!
https://bugs.ruby-lang.org/issues/11520

* Author: Hal Brodigan
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-linux]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
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I noticed that `Array#compact!` sometimes returns `self` and other times `nil`. This behavior was a bit confusing.

    [].compact!
    # => nil
    
    [1].compact!
    # => nil
    
    [nil].compact!
    # => []
    
    [1, nil].compact!
    # => [1]

I would prefer that `Array#compact!` either always returns `nil`, or always returns `self`.



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