addBusinessDays
import { addBusinessDays } from "https://esm.sh/v135/date-fns@3.6.0/index.d.mts";@example
// Add 10 business days to 1 September 2014:
const result = addBusinessDays(new Date(2014, 8, 1), 10)
//=> Mon Sep 15 2014 00:00:00 (skipped weekend days)
function addBusinessDays<DateType extends Date>(date: DateType | number | string, amount: number): DateType;