- This template is used to extend the parser function '#ifeq:' to multiple tests.
- The returned string is defined TRUE if any test pair of input parameters' satisfies as if presented in 'any single' #ifeq: test.
- The returned value is essentially TRUE OR FALSE— garbage characters OR a null string, respectively. Thus it is suitable for testing by a simple #if:-then-else conditional on the calling page.
- Applications are generally to display selective text for a set of pages, as in for example, a common (inter-sister project) usage page for templates, selected by specific page name cases.
- Applications are generally to categorize differently for a group of sister sites sharing a common categorization schema, as in for example, a Wikpedia's template categories changed forms (late-winter/spring of 2007) from "common category names" with other sister projects to new forms... requiring portable templates to be adjusted by sites.
- This template takes up to eight pairs of arguments (i.e 16 numbered parameters), tests the odd versus the even, and returns true if any pair matches using the parser function '#ifeq:'.
- This can be used to test for criteria which may be satisfied by some combination of multiple magic words, such as {{SITENAME}} or {{PAGENAME}}.
- mã ví dụ
{{#if: {{ifequal|{{{1}}}|táo|{{{2}}}|cam|{{{3}}}|lê}}|Yes|No}} round fruits present".
-- returns true if any pair match so will build the string "Yes round fruits present"
-- returns false if none match so will build the string: "No round fruits present"
{{#if: {{#if: {{ifequal|{{{SITENAME}}}|Wikiversity|
{{{PAGENAME}}}|Aircraft|
{{{SITENAME}}}|Wikimedia commons}}||No}}
|outer if's then branch...|outer if's else branch...}}
... inverts the test so tests a condition... with an "inverted result".
--Assuming sites are either Wikiversity or Mediawiki commons returns a null string
as seen by the second if, which then returns the Null string to the first if...
which will expand the specified else condition "outer if's else branch...".
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- {{ifeqall}}
- Compares one comparison string against up to 10 case strings with optional result string and default result string outputs.
- {{ifeqany}}
- Compares up to 24 case strings against each other with result string and default result string outputs.
- {{ifor}}
- Compares up to 30 comparison strings against an equal number of case strings with optional result string and default result string outputs.
