Remove empty places in list


I try to remove empty place in a list. I want to make user friendly input and need a amount of strings 1 to 4. If there is a blank Dynamo crash.
I try a lot but noop result yet.
I hoop to get a good direction for a solution.

Greeting Jan-Willem

check this out:

use the conditon == “”;

and your string is not an “Space”, but it is completely empty use this “”; instead of " ";

Thanks for your responce.
I found a solution by Booleans.AnyTrue

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