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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 |
|---|---|
| 1419 | * |
| 1420 | * This typically is just the route data for the namespace, but you can |
| 1421 | * add any data you'd like here. |
| 1422 | * |
| 1423 | * @since 4.4.0 |
| 1424 | * |
| 1425 | * @param WP_REST_Response $response Response data. |
| 1426 | * @param WP_REST_Request $request Request data. The namespace is passed as the 'namespace' parameter. |
| 1427 | */ |
| 1428 | return apply_filters( 'rest_namespace_index', $response, $request ); |
| 1429 | } |
| 1430 | |
| 1431 | /** |
| 1432 | * Retrieves the publicly-visible data for routes. |
| 1433 | * |
| 1434 | * @since 4.4.0 |
| 1435 | * |
| 1436 | * @param array $routes Routes to get data for. |
| 1437 | * @param string $context Optional. Context for data. Accepts 'view' or 'help'. Default 'view'. |