wp_dequeue_script not working in my plugin

Question

There is a theme my client is using. It enqueues many scripts in the admin area of WordPress. I'd like to dequeue these so that my plugin works properly.

Commenting out this code wp_enqueue_script( "ocmx-jquery", get_template_directory_uri()."/scripts/ocmx.js", array( "jquery" ) ); makes my plugin work properly. So rather than edit their code, I want to add the following to my plugin wp_dequeue_script( 'ocmx-jquery' );. I've added that, and it's as if I never did.

Is there a better way to tell the theme's JS not to load in my plugins settings page?

Answer 1

wp_enqueue_script() also registers the script. So, you'll also need to de-register it first. This code should work depending on how and where the script is enqueued.

function my_dequeue() {
    wp_deregister_script( 'ocmx-jquery' );
    wp_dequeue_script( 'ocmx-jquery' );
}
add_action( 'admin_enqueue_scripts', 'my_dequeue', 10 );

You might also need to play with the priority of the action.

Answer 2

You need to dequeue after the other script has been enqueued. That probably means hooking into wp-enqueue_scripts.

add_action(
  'wp_enqueue_scripts',
  function() {
    wp_dequeue_script( 'ocmx-jquery' );
  }
);

Or a version for an older PHP:

function dequeue_ocmx_jquery() {
    wp_dequeue_script( 'ocmx-jquery' );
}
add_action(
  'wp_enqueue_scripts',
  'dequeue_ocmx_jquery'
);

Answer 3

http://codex.wordpress.org/Function_Reference/wp_dequeue_script

Have a look especially at the bottom of the page, i think this is what you want : "Admin: admin_enqueue_scripts, admin_print_scripts, admin_print_styles"