previousFriday
import { previousFriday } from "https://esm.sh/v135/date-fns@3.6.0/index.d.mts";
@example
// When is the previous Friday before Jun, 19, 2021?
const result = previousFriday(new Date(2021, 5, 19))
//=> Fri June 18 2021 00:00:00
function previousFriday<DateType extends Date>(date: DateType | number | string): DateType;