Help:Ask syntax/Control query marker

The   query marker was introduced in.

Rationale
The  marker allows to dynamically alter a result display without the need to reload a page (where the parser cache is not in effect) and at the same time provides dynamic up-to-date results for pages with inline queries (via the   parser function). At the moment it necessarily uses an option which is called, i.e..

Example

 * Syntax

or

: More examples for this query marker
 * Link