Wikipedia:WikiProject User warnings/Design guidelines: Difference between revisions

Revision as of 14:54, 14 January 2022

Revision as of 00:03, 7 March 2022

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===Parameters===

====Default values====

Nearly every parameter should have a default value, such that misuse does not break the template. You can set the default value of a parameter by using piped syntax (<code><nowiki>{{{1|default value}}}</nowiki></code>). For example, the template below takes a parameter; whichit expects the user to supply the propera [[pronounnoun]], but if they don't, it uses a default noun ("This").

<pre>{{{1|He or sheThis}}} is cool.</pre>

Supplied with the pronoun withnoun <code><nowiki>{{template|HeWikipedia}}</nowiki></code>, the template will expand to "HeWikipedia is cool". Ignoring<code><nowiki>{{template|This thehelp parameterpage}}</nowiki></code> will expand to "This help page is cool". If the with <code><nowiki>{{template}}</nowiki></code>, the template will defaultuse the default value, and expand to "He or sheThis is cool".

====Named syntax====