[wp-trac] [WordPress Trac] #43025: wp_list_filter should filter all iterable objects

[WordPress Trac]

#43025: wp_list_filter should filter all iterable objects
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 Reporter:  jarednova                 |       Owner:
     Type:  defect (bug)              |      Status:  new
 Priority:  normal                    |   Milestone:  Awaiting Review
Component:  General                   |     Version:  4.9.1
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:
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Changes (by swissspidy):

 * keywords:  has-patch needs-unit-tests => has-patch has-unit-tests


Comment:

 @flixos90 Since you worked on `WP_List_Util`, would you mind having a
 look?

 I think we can add such a check directly to the class instead of the
 helper function.

 Also, I'd use `instanceof` instead of `is_a()`. We rarely use the latter
 in core and it's better to be consistent.

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Ticket URL: <https://core.trac.wordpress.org/ticket/43025#comment:4>
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