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prettyPhoto undefined description

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Problem

I had “undefined” showing up in the description of my lightbox whenever I left out the “title” attribute in my link.

 

Solution

I am using jQuery 1.6.2, the examples used 1.4.2.   To resolve the problem, look to change something like this:

 

if(pp_descriptions[set_position] != ""){
				$pp_pic_holder.find('.pp_description').show().html(unescape(pp_descriptions[set_position]));
			}else{
				$pp_pic_holder.find('.pp_description').hide();
			}

to this:

if(typeof pp_descriptions[set_position] != 'undefined' && pp_descriptions[set_position] != ""){
				$pp_pic_holder.find('.pp_description').show().html(unescape(pp_descriptions[set_position]));
			}else{
				$pp_pic_holder.find('.pp_description').hide();
			}

 

search terms used:  prettyphoto undefined description
source: http://forums.no-margin-for-errors.com/discussion/1915/when-there-is-no-title-element-displays-undefined/#Item_3