Help:ParserFunctions: Difference between revisions

Revision as of 14:04, 16 April 2006

Revision as of 14:04, 16 April 2006

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An example:

<nowiki> {{Template|Parameter=something}} {{Template}}</nowiki>

<nowiki> | |</nowiki>

<nowiki> | |</nowiki>

<nowiki>{{ #if: {{{parameter|}}} | Parameter is defined. | Parameter is undefined. }}</nowiki>

Note that the <tt>if</tt> function does '''not''' support "=" signs or mathematical expressions. <nowiki>{{#if: 1 = 2|yes|no}}</nowiki> will return "yes", because the string "1 = 2" is not blank. It is intended as an "if defined" structure. To compare strings, use <tt>ifeq</tt>. To compare numbers, use <tt>ifexpr</tt>.