View source for Template:Ifexist/doc

This template checks for existence of pages.

The <code>#ifexist</code> parser function exists as part of the [[mw:Extension:ParserFunctions|ParserFunctions]] extension, but will put up the checked page title on the list of [[Special:WantedPages|wanted pages]] if it doesn't exist (see [[mw:phab:T14019|task 14019 on Wikimedia Phabricator]]). This template serves as a workaround for this flaw. Use this template sparingly because it also uses an expensive parser function.

==How to use==
===Parameters===
{| class="wikitable" style="background: #e5f1ec;"
|- 
! style="background: #d1e5d9" | Parameter
! style="background: #d1e5d9" | Allowed values
! style="background: #d1e5d9" | Notes
|-
| <code>1</code>
| ''Page title''
| The page title to be checked. This parameter is case-sensitive, except for the first letter.
|-
| <code>2</code>
| ''String''
| '''Optional'''. The text to render if the page specified in the parameter <code>1</code> exists. Defaults to <code>true</code>.
|-
| <code>3</code>
| ''String''
| '''Optional'''. The text to render if the page specified in the parameter <code>1</code> doesn't exist. Defaults to an empty string.
|}

==Example==
<pre>* The page {{ifexist|Ash's Pikachu|"[[Ash's Pikachu]]" exists|"Ash's Pikachu" doesn't exist}}.</pre>
* The page {{ifexist|Ash's Pikachu|"[[Ash's Pikachu]]" exists|"Ash's Pikachu" doesn't exist}}.
<pre>* The page {{ifexist|Ash's Mudkip|"[[Ash's Mudkip]]" exists|"Ash's Mudkip" doesn't exist}}.</pre>
* The page {{ifexist|Ash's Mudkip|"[[Ash's Mudkip]]" exists|"Ash's Mudkip" doesn't exist}}.

==TemplateData==
<templatedata>
{
	"params": {
		"1": {
			"label": "Page title",
			"description": "The page title to be checked. This parameter is case-sensitive, except for the first letter.",
            "example": "Ash's Pikachu",
			"type": "wiki-page-name",
			"required": true
		},
		"2": {
			"label": "Value if page exists",
			"description": "The text to render if the given page exists.",
			"example": "\"[[Ash's Pikachu]]\" exists",
			"type": "string",
			"default": "true"
		},
		"3": {
			"label": "Value if page doesn't exist",
			"description": "The text to render if the given page doesn't exist. Defaults to an empty string.",
			"example": "\"Ash's Pikachu\" doesn't exist",
			"type": "string"
		}
	},
	"description": "This template checks for existence of pages.",
	"format": "inline"
}
</templatedata>

==See also==
* {{wp|Template:Linkless exists}} on the English Wikipedia

<noinclude>[[Category:Documentation templates]]</noinclude>