Template:T

Template page

{{{{#if:|{{{prefix}}}:}}[[Template:{{{1}}}|{{{1}}}]]{{#if:||<{{{2}}}>}}{{#if:||<{{{3}}}>}}{{#if:||<{{{4}}}>}}{{#if:||<{{{5}}}>}}{{#if:||<{{{6}}}>}}{{#if:||<{{{7}}}>}}{{#if:||<{{{8}}}>}}{{#if:||<{{{9}}}>}}{{#if:||<{{{10}}}>}}{{#if:||<{{{11}}}>}}{{#if:||<{{{12}}}>}}{{#if:||<{{{13}}}>}}{{#if:||<{{{14}}}>}}{{#if:||<{{{15}}}>}}{{#if:||<{{{16}}}>}}{{#if:||<{{{17}}}>}}{{#if:||<{{{18}}}>}}{{#if:||<{{{19}}}>}}{{#if:||<{{{20}}}>}}{{#if:||<{{{21}}}>}}}}

Template documentation
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Description

A template link with a variable number of parameters (0-20).

Syntax
{{{{#if:|{{{prefix}}}:}}t{{#if:parameter1||<parameter1>}}{{#if:parameter2||<parameter2>}}{{#if:parameter3||<parameter3>}}{{#if:parameter4||<parameter4>}}{{#if:...||<...>}}{{#if:parameter20||<parameter20>}}{{#if:||<{{{8}}}>}}{{#if:||<{{{9}}}>}}{{#if:||<{{{10}}}>}}{{#if:||<{{{11}}}>}}{{#if:||<{{{12}}}>}}{{#if:||<{{{13}}}>}}{{#if:||<{{{14}}}>}}{{#if:||<{{{15}}}>}}{{#if:||<{{{16}}}>}}{{#if:||<{{{17}}}>}}{{#if:||<{{{18}}}>}}{{#if:||<{{{19}}}>}}{{#if:||<{{{20}}}>}}{{#if:||<{{{21}}}>}}}}
Source
Improved version not needing t/piece subtemplate developed on Templates wiki see the list of authors. Copied here via CC-By-SA 3.0 license.
Example
{{{{#if:|{{{prefix}}}:}}t{{#if:param1||<param1>}}{{#if:param2||<param2>}}{{#if:||<{{{4}}}>}}{{#if:||<{{{5}}}>}}{{#if:||<{{{6}}}>}}{{#if:||<{{{7}}}>}}{{#if:||<{{{8}}}>}}{{#if:||<{{{9}}}>}}{{#if:||<{{{10}}}>}}{{#if:||<{{{11}}}>}}{{#if:||<{{{12}}}>}}{{#if:||<{{{13}}}>}}{{#if:||<{{{14}}}>}}{{#if:||<{{{15}}}>}}{{#if:||<{{{16}}}>}}{{#if:||<{{{17}}}>}}{{#if:||<{{{18}}}>}}{{#if:||<{{{19}}}>}}{{#if:||<{{{20}}}>}}{{#if:||<{{{21}}}>}}}}