Using modern list view formatting to alternate row colors

Question

I have been looking into using view formatting to alternate the colors of rows in order to recreate what came out of the box in the classic views. However it seems like I can't access the row ID as a criteria nor can I use Mod as an operator. I kinda found a work around using a calculated column to do the MOD, but it is not an elegant solution. Is there really no easy way to alternate the row colors?

Answer 1

All Items, Format current view, put the following in the JSON box.

{
  "$schema": "https://developer.microsoft.com/json-schemas/sp/view-formatting.schema.json",
  "additionalRowClass": "=if(@rowIndex % 2 == 0,'ms-bgColor-themeLighter ms-bgColor-themeLight--hover','')"
}