• Ruby gaining a safe navigation operator: '.?' https://bugs.ruby-lang.org/issues/11537 82 comments 26/10/2015

• Introduce "Safe navigation operator" https://bugs.ruby-lang.org/issues/11537 11 comments 22/10/2015 ruby

• Alternative to the safe navigation operator https://bugs.ruby-lang.org/issues/11537#note-23 19 comments 27/10/2015 ruby

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