How to delete column(s) in Numbers with JXA?

I am able to delete rows with rows[nn].delete(). Doing similar for deleting columns doesn’t seem to work. Help with this (should be simple and maybe I am totally missing something here) much appreciated.

Okay, what I was totally missing was, the incomplete rearrangement of columns; I assumed that part of the script was done – nope. I was trying to delete columns in the middle of the spreadsheet and didn’t notice it was deleting that column. But, that wasn’t the column I needed to delete.

table.columns['W'].delete() (‘W’ is column W)
does work as expected.
My bad.