Help:Parameter default: Difference between revisions

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Latest revision as of 01:49, 4 February 2025

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Line 61:

For comparison using a="if" and c=d="", and also the shorter class name "if" instead of "HiddenStructure", the two lines are:

<syntaxhighlight lang="wikitext">

<nowiki><span class=" if{{{b|}}} "> ... </span></nowiki>

<nowiki>{{{ span class=" if{{{b|}}} | "> ... }}}</nowikispan>

{{{ if{{{b|}}} | ... }}}

</syntaxhighlight>

In the second method the wikitext in the template is 15 characters shorter for each optional item, but each call is 4 characters ("if=|") longer.

Line 115 ⟶ 116:

<syntaxhighlight lang="wikitext">{{{else{{{test|}}}|{{{test{{{test|}}}|{{{then|}}}}}}}}}</syntaxhighlight>

----

or in short form:

<syntaxhighlight lang="wikitexttext">[ else[test|] | [ test[test|] | [then|] ] ]</syntaxhighlight>

If [<code>{{bracket|test]}}</code> is defined this reduces to

<syntaxhighlight lang="wikitexttext">[ else[test] | [ test[test] | [then|] ] ]</syntaxhighlight>

For test equal to null this reduces to [else<code>{{bracket|]else{{!}}}}</code>; otherwise, if no parameter name starting with "test" or "else" applies except these themselves, then this reduces to [then<code>{{bracket|]then{{!}}}}</code>.

If [<code>{{bracket|test]}}</code> is undefined we get

<syntaxhighlight lang="wikitexttext">[ else | [then|] ]</syntaxhighlight>

==Last-but technique==