previousDay
import { previousDay } from "https://esm.sh/v135/date-fns@3.6.0/index.d.mts";@example
// When is the previous Monday before Mar, 20, 2020?
const result = previousDay(new Date(2020, 2, 20), 1)
//=> Mon Mar 16 2020 00:00:00
@example
// When is the previous Tuesday before Mar, 21, 2020?
const result = previousDay(new Date(2020, 2, 21), 2)
//=> Tue Mar 17 2020 00:00:00