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by JakobHeiss
Wed Feb 28, 2024 10:01 pm
Forum: General
Topic: check if a parameter is empty
Replies: 3
Views: 69793

check if a parameter is empty

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\isempty{#1}
is a good alternative instead of

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\equal{#1}{}}
So, in your example, I would use

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\newcommand{\card}[1]{
\ifthenelse{\isempty{#1}}{Empty.}{Nonempty.}
}