Template:Category if exists
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 | This template is used on approximately 6,700 pages and changes may be widely noticed. Test changes in the template's /sandbox or /testcases subpages, or in your own user subpage. Consider discussing changes on the talk page before implementing them. |
| Due to a server limit of 500 "expensive parser function" calls (e.g. #ifexist:, PAGESIZE:, and PAGESINCATEGORY:), this template will only work properly if the page using it has not already exceeded the limit. When the limit is exceeded, the page using this template or module is categorised in Category:Pages with too many expensive parser function calls. (further information) |
 | This template uses Lua: |
This template outputs a category if the category exists. Otherwise, it returns nothing. It is intended for use in templates.
TemplateData
This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:Category if exists in articles based on its TemplateData.
TemplateData for Category if exists
Outputs a link to a category if it exists; otherwise returns nothing.
| Parameter | Description | Type | Status | |
|---|---|---|---|---|
| Category name | 1 | Category for potential inclusion if it exists. "Category:" prefix is optional.
| Page name | required |
| Sort key | 2 | [[WP:SORTKEY]] of the category.
| Line | optional |