The ~ symbol at the start of a run is a synonym for “:else”, and it means that the run will only be processed if the current list is empty. There are some docs here:
https://tiddlywiki.com/#Filter%20Expression <https://tiddlywiki.com/#Filter%20Expression> Best wishes Jeremy > On 12 Jul 2021, at 16:33, Siniy-Kit <[email protected]> wrote: > > Thank you Jeremy. It works good. And where I can read about this "~" symbol > in filters. I never use it. > > понедельник, 12 июля 2021 г. в 18:31:15 UTC+3, [email protected]: > Try: > > {{{ [tag[notag]get[price]] ~0 +[minall[]] }}} > > Best wishes > > Jeremy > > >> On 12 Jul 2021, at 16:29, Siniy-Kit <[email protected] >> <applewebdata://ACFE616F-3E32-476C-A113-BED49D3B0544>> wrote: >> > >> OK. How can I get 0 (not infinity) in this filter >> {{{[tag[notag]get[price]minall[]]}}} when there is no tiddlers with tag >> "notag" >> >> понедельник, 12 июля 2021 г. в 17:48:16 UTC+3, [email protected] >> <http://gmail.com/>: >> Hi Siniy-Kit, >> >>> Hi! I use minall[] in filter, and sometimes get "infinity" when one of >>> the field values is text (not number) How can I check numbers in filter? >>> (something like is[number] ) >> >> That seems like a bug with the minall[] operator. All the numeric operators >> are supposed to treat items that can’t be parsed as a number as zero. Thus >> the following filter returns zero: >> >> 1 2 3 chicken +[minall[]] >> >> Can you give an example of the values that return Infinity? >> >> Many thanks, >> >> Jeremy >> >>> >>> -- >>> 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/75155f75-3c13-409f-ace8-2799d5d9a7ban%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/tiddlywiki/75155f75-3c13-409f-ace8-2799d5d9a7ban%40googlegroups.com?utm_medium=email&utm_source=footer>. >> >> >> -- >> 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] >> <applewebdata://ACFE616F-3E32-476C-A113-BED49D3B0544>. > >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/tiddlywiki/d98e3630-bf04-4202-8963-860fe9c6bd1cn%40googlegroups.com >> >> <https://groups.google.com/d/msgid/tiddlywiki/d98e3630-bf04-4202-8963-860fe9c6bd1cn%40googlegroups.com?utm_medium=email&utm_source=footer>. > > > -- > 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] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tiddlywiki/107a15ad-6821-4a5c-9c43-6906a4e62882n%40googlegroups.com > > <https://groups.google.com/d/msgid/tiddlywiki/107a15ad-6821-4a5c-9c43-6906a4e62882n%40googlegroups.com?utm_medium=email&utm_source=footer>. -- 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/2C7E17F7-1170-4C94-B7E4-D4EEA1F3B279%40gmail.com.

