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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 289 | if ( $result && ! is_wp_error( $result ) ) { |
| 290 | |
| 291 | /** |
| 292 | * Fires after a navigation menu has been successfully deleted. |
| 293 | * |
| 294 | * @since 3.0.0 |
| 295 | * |
| 296 | * @param int $term_id ID of the deleted menu. |
| 297 | */ |
| 298 | do_action( 'wp_delete_nav_menu', $menu->term_id ); |
| 299 | } |
| 300 | |
| 301 | return $result; |
| 302 | } |
| 303 | |
| 304 | /** |
| 305 | * Saves the properties of a menu or create a new menu with those properties. |
| 306 | * |
| 307 | * Note that `$menu_data` is expected to be pre-slashed. |