Template:Item data

This template contains various independently retrievable data items about  in the form of parameter values of a variable template of choice, in a standardized fashion.

Itempages

 * Page:
 * 


 * Category:
 * Category:



Parameters


All item data templates use the same parameter.

Retrieval of data items
, using parameter selection template Template:Tooltip/Item/Data, gives the parameter as_base, etc.

For retrieval of more data items it is more efficient to prepare a template for that, to be used as follows:

template name

So that this data template needs to be called only once.(See the first two rows of the first table in m:Help:Array.) The default template is Template:Item data, producing this page.

The four parameters are optional, they are passed on to the prepared template as parameters 2-5.

A parameter being undefined or empty typically means the same, see below. gives the empty string and the text " ", respectively. Therefore, an application checking the parameter has to check both. Checking whether a result is equal to e.g. the text " " cannot be done directly with #ifeq in a template which itself has also a parameter with that name, because if that is defined, there would be a comparison with the value instead of the text itself. Instead, it can be checked whether the first character of the result is " ", e.g.:.

Until here the documentation is automatically generated by Template:Item_data.