Check if a script/style was enqueued/registered

2 comments

1. There is a function called wp_script_is( $handle, $list ). $list can be one of:

   • ‘registered’ — was registered through wp_register_script()
   • ‘queue’ — was enqueued through wp_enqueue_script()
   • ‘done’ — has been printed
   • ‘to_do’ — will be printed

   Ditto all that for wp_style_is().

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2. Check $GLOBALS['wp_scripts']->registered for scripts.

   Example

   function is_enqueued_script( $script )
   {
       return isset( $GLOBALS['wp_scripts']->registered[ $script ] );
   }
   
   print (int) is_enqueued_script( 'l10n' );
   

   $GLOBALS['wp_styles']->registered works the same way.

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