How to highlight a row in a table depending on the value in the cell?

Question

JavaScript

Actually the question is - if the table has a bunch of rows (each row does not have an id or some kind of individual indicator), there are a bunch of cells in the row, but one of them can have one of 4 values ​​\u200b\u200b(let's say 1,2,3 and 4 ). How to highlight the entire row with a color if the value in this cell is 2?

Answer 1

I didn’t have time a little)
You can do this plnkr.co/edit/DN0TbQ?p=preview
Unlike Maxim’s solution, the background is painted on the cells themselves, and not on the tr element

Answer 2

take the parent of this td and paint all its children with a background.