User talk:Trev M/ThumbTid

Someone familiar with wiki conditional statements needed to have a look at this User:Trev_M/ThumbTid to give an idea what's stopping the lefthand version of this potentially useful variant of the thumbnail rendering template from performing as intended....

Not getting anywhere having read and understood WP:ParserFunctions

Thanks, Trev M (talk) 20:42, 23 February 2010 (UTC)
 * The code  expands to the value of the parameter , so if you use for example  , it works (as you can see in the image on the left). If you wanted the code you used to work, you would have to test for second unnamed parameter –  , but be aware that unnamed parameters don't strip whitespace, so exactly this code wouldn't work, you would have to use  . Svick (talk) 21:23, 23 February 2010 (UTC)