[wp-trac] [WordPress Trac] #48880: Using JSON.parse instead of an actual object literal when localizing scripts

[WordPress Trac]

#48880: Using JSON.parse instead of an actual object literal when localizing
scripts
-------------------------------------+-----------------------------
 Reporter:  naxvog                   |      Owner:  (none)
     Type:  enhancement              |     Status:  new
 Priority:  normal                   |  Milestone:  Awaiting Review
Component:  Script Loader            |    Version:  5.3
 Severity:  normal                   |   Keywords:
  Focuses:  javascript, performance  |
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 As the V8 team at Google stated in their "The cost of JavaScript in 2019"
 [https://v8.dev/blog/cost-of-javascript-2019#json]" blog post using
 {{{JSON.parse()}}} is generally faster (~18%) for configuration object
 literals such as the output of the localize method of the WP_Scripts
 class.

 As the output of the localize method is already rendered using
 {{{wp_json_encode()}}} the change would be quite trivial and backward
 compatible.

 Added a diff with additional changes to the block editor init script using
 the same method.

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Ticket URL: <https://core.trac.wordpress.org/ticket/48880>
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