Added to TW-Scripts.

On Thursday, February 21, 2019 at 10:52:51 AM UTC+3:30, Mal wrote:
>
> Mohammad,
>
>
>> So, for checking if a title is an existing tiddler what can I do
>>
>> [!is[tiddler]]   [is[missing]] [has[title]]
>>
>> I think you can use any of these to test if a tiddler already exists.  
> When I put [[my tiddler title]!is[tiddler]] into Advanced Search/Filter, I 
> get the output "my tiddler title" and, when I then create a tiddler with 
> this title, I get no output.  This is all as expected according to the 
> documentation for the "is" Operator.  Using "is[missing]" produces the same 
> result.  Also, "!has[title]" or "!has[text]" seem to work just as well, 
> although I think the first two are easier to interpret, so make the code a 
> bit more readable.
>
> Note that "is[tiddler]" and "is[missing]" treat shadow tiddlers as though 
> they don't exist.  Which is OK because it is reasonable that you might want 
> to create a tiddler to overwrite a shadow tiddler.  On the other hand, 
> "has[title]" and "has[text]" don't ignore shadow tiddlers, so you need to 
> decide which option suits your application.
>
> Regards,
>
> Mal
>
>

-- 
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/1828e772-2da3-40bd-bde2-2eba66876830%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to