Add function for checking whether a script has already been added

[Denis-de-Bernardy]

a wp_is_enqueued_script($handle) function could be useful... something like:

function wp_is_enqueued_script($handle)
{
  global $wp_scripts;
  if ( !is_object($wp_scripts) )
    return false;
  else
    return in_array($handle, (array) $wp_scripts->queue);
}

[mdawaffe]

The wp_scripts already has a method to determine if a script, exists, has been queued, or has been printed.

global $wp_scripts;
return $wp_scripts->query( $handle, 'queue' ); // 'scripts', 'queue', or 'printed'

There's no procedural wrapper for it though.

[Denis-de-Bernardy]

works for me... :)

[westi]

Good idea - moving to 2.6 as we are in feature freeze and you can access the info easily if not via a wrapper function.

[jacobsantos]

Adds new functions based off of r10258

[jacobsantos]

Moving to 2.8 since it has a patch.

[jacobsantos]

Shouldn't need testing since it is based on part off of the query in WP_Dependencies, so if there is a bug, then it is within WP_Dependencies::query().

[jacobsantos]

Yeah, is there a reason this hasn't been committed yet? I'll be willing to make the changes to get this committed.

[westi]

(In [10572]) Expose the ability to find out if styles, scripts have already been queued. Fixes #6197 props jacobsantos