[wp-trac] [WordPress Trac] #50235: wp-admin/js/updates.js: Use wp.i18n for JavaScript translations

[WordPress Trac]

#50235: wp-admin/js/updates.js: Use wp.i18n for JavaScript translations
-------------------------+--------------------
 Reporter:  ocean90      |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  5.5
Component:  I18N         |    Version:
 Severity:  normal       |   Keywords:
  Focuses:  javascript   |
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 JavaScript translation support is available since 5.0 (#45103) and so far
 only used in the block editor, site health, and media views. Other scripts
 are still using the old way via `wp_localize_script()`.


 Issues, that a switch to `wp.i18n` would solve:

 * The current way in script-loader.php (`did_action( 'init' ) &&
 $scripts->localize()` initializes all the translations even if the script
 isn't used.
 * `wp_localize_script()` has no proper support for plural forms.
 * Since script-loader.php is in wp-includes the translations are all part
 of the front-end PO/MO files while some of them are only used in wp-admin.

 Therefore I'm proposing to increase the usage of `wp.i18n`. The change
 should be processed file by file.

 This ticket is for wp-admin/js/updates.js.

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Ticket URL: <https://core.trac.wordpress.org/ticket/50235>
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