Dave, You say "start general on the outside and gets progressively specified as you go inwards to the center" which is most likely true but need not be the case.
If the inner list does not make use of something from the outer list it can be a totally "fresh" filter. Of course what it makes use of is commonly the current tiddler changing. With fields, the has vs the get, often involves an outer and an inner list because one finds the tiddler that has the field in it, the other Gets the value of the field in that tiddler. Thus they cant practically be in the same list operation as the first returns a tiddler name you need, the second returns the value in a field - they are both needed so one filter produces a different result to the other. One trick often applied is to just try and Get the values on a tiddlers field, if there are none (or no field of that name) nothing will be returned. Regards Tony On Monday, July 30, 2018 at 12:28:06 AM UTC+10, Dave wrote: > > Thank you! > > Yeah I've been trying to understand how these nested filters work. > It seems to start general on the outside and gets progressively specified > as you go inwards to the center > > On Sunday, July 29, 2018 at 2:05:14 AM UTC-6, TonyM wrote: >> >> I would reword you first sentence. >> >> Ok, so the first list assigns the result of that filter (all fieldnames >> in the current tiddler) to the variable "fieldname" a field at a time. >> >> The innerlist is executed once for each field. >> >> Regards >> Tony >> >> -- 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 post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/52736c44-9d26-43f3-ac77-31b4e1828636%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
