Editing Module:Check DYK hook/doc (section)

=== From templates ===

From templates, call the <code>isValidHook</code> function, and use the {{para|hook}} parameter to specify the hook.

 &#123;{#invoke:Check DYK hook&#124;isValidHook&#124;hook=''hook''}&#125;

Valid hooks will return a value of "yes"; invalid hooks will return the empty string.

You can also use the first positional parameter to specify the hook. If you do this, it is recommended to use {{para|1}} explicitly; if not, and the hook contains an equals sign, the text before the equals sign will be treated as a parameter name and the hook will not be recognised.