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  • ...tt>. It is not possible to distinguish between an undefined parameter in a template and a blank one (it is possible with <tt>[[#.23ifexpr:|#ifexpr]]</tt>). It is possible to distinguish between undefined and empty template parameters by comparing default values (if the parameter is defined, it wil
    45 KB (6,655 words) - 23:19, 3 December 2008