[wp-trac] [WordPress Trac] #59453: Replace property_exists call in block api with instanceof

[WordPress Trac]

#59453: Replace property_exists call in block api with instanceof
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 Reporter:  spacedmonkey  |       Owner:  gziolo
     Type:  enhancement   |      Status:  reviewing
 Priority:  normal        |   Milestone:  Future Release
Component:  Editor        |     Version:  5.8
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:  coding-standards
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Comment (by flixos90):

 @spacedmonkey Could you share some benchmarks or profiles here in regards
 to the performance impact?

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Ticket URL: <https://core.trac.wordpress.org/ticket/59453#comment:4>
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