Issue #12512 has been updated by Shyouhei Urabe.


Can we stick to the name of #map_v here?  I don't think it's wise to expand the front line in this thread.

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Feature #12512: Import Hash#transform_values and its destructive version from ActiveSupport
https://bugs.ruby-lang.org/issues/12512#change-60162

* Author: Kenta Murata
* Status: Open
* Priority: Normal
* Assignee: Yukihiro Matsumoto
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I think value transformation is a fundamental feature of Hash.



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