No worries, you’re so kind to answer my previous questions.
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Border issue
Ifborder-topandborder-leftare removed, some cells do not have these borders anymore as they’re contiguous to empty cells which have no style at all. In my example above, cells at row 2 between columns B and F would not have top border with your change, and that is not pretty. -
className issue
I’m already usingcellPropertiesto passclassName. Check line 98 in my JSFiddle example above :
cellProperties.className = allClassNames;
Did I miss something ?