How to Remove WordPress Dashboard Widgets

Here is the code

function remove_dashboard_widgets() {
 global $wp_meta_boxes;

 unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_quick_press']);
 unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_incoming_links']);
 unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_right_now']);
 unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_plugins']);
 unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_drafts']);
 unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_comments']);
 unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_primary']);
 unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary']);

} 
add_action('wp_dashboard_setup', 'remove_dashboard_widgets' );