[wp-trac] [WordPress Trac] #58457: Optimize `WP_Theme_JSON::append_to_selector`

[WordPress Trac]

#58457: Optimize `WP_Theme_JSON::append_to_selector`
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 Reporter:  bor0         |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  General      |    Version:  trunk
 Severity:  normal       |   Keywords:  has-patch
  Focuses:  performance  |
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 On a basic WordPress installation, visiting the frontend page shows about
 1104 calls to the function `WP_Theme_JSON::append_to_selector`.

 We find a way to optimize the function by bringing the conditional check
 one level above. While it increases code verbosity, it also improves
 performance, as can be seen by the attached images.

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Ticket URL: <https://core.trac.wordpress.org/ticket/58457>
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