Issue #15323 has been updated by shevegen (Robert A. Heiler).


Actually, after rereading what Jonathan wrote, he referred not to "true" va=
lues
per se, but as to whether "non nil values" are to be included. So perhaps I
misunderstood his comment. I think that filter still applies to the .select
and should return what matches to the given criterium, so from this point of
view I understand Jonathan's confusion. Either way I think it is best to =

define this clearly.

----------------------------------------
Feature #15323: [PATCH] Proposal: Add Enumerable#filter_map
https://bugs.ruby-lang.org/issues/15323#change-82468

* Author: alfonsojimenez (Alfonso Jim=E9nez)
* Status: Closed
* Priority: Normal
* Assignee: =

* Target version: =

----------------------------------------
This is a proposal for a combined `filter` + `map` method (https://bugs.rub=
y-lang.org/issues/5663).

This method both filters and maps the elements of an enumerable in just one=
 iteration:

~~~ ruby
(1..10).filter_map { |i| i * 2 if i.even? } #=3D> [4, 8, 12, 16, 20]
~~~

GitHub PR: https://github.com/ruby/ruby/pull/2017


 =


---Files--------------------------------
0001-Adding-Enumerable-filter_map.patch (4.61 KB)


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