How to get the number of authors for determining

[YanMing-lxb]

I want to realize the effect of “key is the first author_etal when the number of authors is greater than 2, otherwise the key is the first author”, but I can't find any function or command to get the number of authors in the zotero-better-bibtex webpage, how should I realize this function?

[retorquere]

creators(1, min=3, etal=etal);
creators(1);

[YanMing-lxb]

Sorry, I did not give the complete code, I embedded the code you gave me into the existing code, but there is an error:

(language(zh) ? 
    (creators(1, min=3, etal=etal);
     creators(1);
    ) 
   + '_' + date("%y%m"):

   authAuthEa.capitalize + '_' + date("%y%m")
)

[retorquere]

You are embedding multiple formulas in the ternary. That does not work, but I'm not entirely sure what you are trying to express. Can you open an issue? That will make it easier for me to replicate what you are trying to do.

[YanMing-lxb]

The issue has been resolved at issue

[YanMing-lxb]

Thank you very much Emiliano Heyns!