Mohammad, the Larger point is all filters act on a set of titles, the default is as Eric said, is all[tiddlers]
When I first read your examples, I immediately saw you have not defined the scope of this set and it would thus default to all[tiddlers] You no doubt often start a filter with all[current], !is[system] etc... which is the first step to limit the size of the set of titles to be used by the filter. I feel it is this concept which may need to be documented, rather than all the possible "invalid" cases one could write, like you adding 0 to every title. Regards Tony On Sunday, January 5, 2020 at 7:17:59 AM UTC+11, Mohammad wrote: > > Hello Eric, > > On Saturday, January 4, 2020 at 11:41:25 PM UTC+3:30, Eric Shulman wrote: >> >> On Saturday, January 4, 2020 at 11:33:24 AM UTC-8, Mohammad wrote: >>> >>> In Tiddlywiki.com trye below examples: >>> >>> >>> - <$list filter="[add[0]]"/> >>> - <$list filter="[multiply[0]]"/> >>> >>> >>> Is this an small issue? >>> >> >> What is happening is that, by default, a filter starts with an implied >> "all[tiddlers]". >> > > That is the reason! > > >> Non-numeric list items (such as tiddler titles) have a value of 0. >> At TiddlyWiki.com, there are 1304 non-shadow tiddlers. >> Thus, each of the above filters is producing 1304 numeric results. >> >> This seems consistent and correct to me. What do you want the results to >> be? >> > > With respect to part one, this is understandable. > > NOT sure if it is already in documentation! Worth to be added. > >> >> -e >> >> -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/8aaefff6-fb0f-4e01-81f6-376fe606689f%40googlegroups.com.

