[TW5] How do you test when a tiddler doesn't exist?

[c pa]

I don't have a tiddler called ScrambledEggs

And yet <$list filter="[title[ScrambledEggs]]" emptyMessage="no tiddler">Tiddler Exists</$list> Outputs "Tiddler Exists"

<$list filter="[tag[ScrambledEggs]]" emptyMessage="no tiddler">Tiddler Exists</$list> Outputs "no tiddler"

Is there a way to test to see if a tiddler exists and display one thing if it does and another if it doesn't?

[c pa]

Got it!

<$list filter="[title[ScrambledEggs]is[tiddler]]" emptyMessage="""

[Jed Carty]

That is a more elegant solution than what I have been using, I have been testing for existence using [[ScrambledEggs]has[title]], thank you for sharing.
I am always surprised by how many things there are in tiddlywiki that I haven't seen.