Issue #15323 has been updated by greggzst (Grzegorz Jakubiak).


alfonsojimenez (Alfonso Jim=E9nez) wrote:
> I've updated the patch file increasing the ruby version in *spec/ruby/cor=
e/enumerable/filter_map_spec.rb*
> =

> `Enumerable#filter_map` was already accepted in the last developers meeti=
ng: https://docs.google.com/document/u/2/d/e/2PACX-1vTUCmj7aUdnMAdunG0AZo0A=
dWK-9jvfXcB7DWYmzGtmPc0IuIPGn7eLARoR5tBd6XUUB08W-hH74k-T/pub

Does the syntax allow for this kind of code?

~~~ruby
(1..10).filter_map(&:even?) { |i| i * 2 }
~~~


----------------------------------------
Feature #15323: [PATCH] Proposal: Add Enumerable#filter_map
https://bugs.ruby-lang.org/issues/15323#change-77866

* Author: alfonsojimenez (Alfonso Jim=E9nez)
* Status: Open
* 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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