wp_print_head_scripts() WordPress Function

function wp_print_head_scripts() {
	global $wp_scripts;

	if ( ! did_action( 'wp_print_scripts' ) ) {
		/** This action is documented in wp-includes/functions.wp-scripts.php */
		do_action( 'wp_print_scripts' );
	}

	if ( ! ( $wp_scripts instanceof WP_Scripts ) ) {
		return array(); // No need to run if nothing is queued.
	}

	return print_head_scripts();
}
Uses	Description
wp-includes/functions.wp-scripts.php:wp_print_scripts	Fires before scripts in the $handles queue are printed.
wp-includes/plugin.php:did_action()	Retrieves the number of times an action has been fired during the current request.
wp-includes/plugin.php:do_action()	Calls the callback functions that have been added to an action hook.
wp-includes/script-loader.php:print_head_scripts()	Prints the script queue in the HTML head on admin pages.