Mohammad, You have answered your own question. That is the difference. Both return nothing if a field does not exist, thus emptyValue or emptyMessage return values. With this behaviour you can test all three posibilities. The field[] operator is not so comprehencive.
I think of has[fieldname] as has value, and has:field[fieldname] as has field or value. 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/010cd61a-c20b-43df-95dc-659104a5e4a9%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
