Juan Manuel Macías writes: >> For a while I have the following question. Is \\{} have the same >> effect on tabularray parser as \\\empty? > > Throw an error before \hline.
To expand on my answer: \\{} and \\\empty, before \hline, throw the same error: ------------------------------ ERROR: Misplaced \noalign. --- TeX said --- \hline ->\noalign {\ifnum 0=`}\fi \hrule \@height \arrayrulewidth \futurelet... l.17 \end {tblr} --- HELP --- >From the .log file... I expect to see \noalign only after the \cr of an alignment. Proceed, and I'll ignore this case. ------------------------------