Suggestion for checking if a Tiddler is empty?

[David Szego]

Hi all, happy new year. Hope it's a great one for all of you and for the project!

Can anyone suggest a filter or list that will give me a true/false if a Tiddler is empty (has no text)? Couldn't find an answer here...

Thanks,
David.

[Mal Gamble]

[has[text]]

Regards,

Mal

[Mohammad Rahmani]

This macro can return the name of tiddler and a true/false if it has / has not text

\define hasText(tid)

<$set name="Tiddler" value=<<__tid__>> >

<$reveal type="match" default=<<Tiddler>> text={{{ [<Tiddler>has[text]] }}}>

<<Tiddler>>: True

</$reveal>

<$reveal type="nomatch" default=<<Tiddler>> text={{{ [<Tiddler>has[text]] }}}>

<<Tiddler>>: False

</$reveal>

</$set>

\end

• Test

In https://tiddlywiki.com/ create two tiddlers one Test01 and the other Test02, put a text in the first tiddler and leave empty the second, then try as below

<<hasText Test01>>
<<hasText Test02>>

The results will be

Test01: False

Test02: True

If you like to use it inside a list widget, tag above two tiddlers with something e.g test

<$list filter="[tag[test]]">

<$macrocall $name="hasText" tid=<<currentTiddler>> /><br>

</$list>

You will have then:

Test01: False
Test02: True

Good luck

Mohammad

[Elijah]

What about checking for a specific string - how would I go about doing that?

[PMario]

On Tuesday, March 12, 2019 at 11:34:47 PM UTC+1, Elijah wrote:

What about checking for a specific string - how would I go about doing that?

IMO reveal-widget may be of use? https://tiddlywiki.com/#RevealWidget

-m

[Elijah]

Thanks. That link had the rest of the information I needed to figure it out. Setting the state equal to the tiddlerTitle!!text and then the text to the string, in quotations, worked. Was also able to remove the "default=<<Tiddler>>" entirely.