I think you should use `elem.caption = {}`

-- 
Better --help|less than helpless

Den tors 14 jan. 2021 10:41Stephan Boltzmann <stephan2boltzmann-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
skrev:

> Hello everybody out there using Pandoc,
>
> I would like to remove the caption from tables in PDF output and tried a
> couple of things without success:
>
> if FORMAT:match 'latex' then
>   function Table (elem)
>     --caption = elem.caption
>     caption = elem.c[2] -- caption seems to be second element
>     print(pandoc.utils.stringify(caption))
>     --elem.c[2] =  nil
>     --elem.c[2] =  pandoc.Str('Test')
>     --elem.caption =  nil
>     --elem = nil
>     --return {pandoc.Table(elem.c)}
>     --return {elem}
>     --elem:remove(2)
>     --table.remove(elem.c,2)
> --[[
>     return {
>       pandoc.Para(pandoc.Str('test'))
>     }
> --]]
>     return {
>       --pandoc.Table(elem.caption, elem.aligns, elem.widths, elem.headers,
> elem.rows)
>     }
>   end
> end
>
> The main problem could actually rather be the construction of the table
> using the function pandoc.Table in the return statement:
> Could not read list: Could not get Block value: expected table, got 'nil'
> (nil)
>
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>

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