differenceInCalendarISOWeeks
import { differenceInCalendarISOWeeks } from "https://esm.sh/v135/date-fns@3.6.0/index.d.mts";@example
// How many calendar ISO weeks are between 6 July 2014 and 21 July 2014?
const result = differenceInCalendarISOWeeks(
new Date(2014, 6, 21),
new Date(2014, 6, 6)
)
//=> 3
function differenceInCalendarISOWeeks<DateType extends Date>(dateLeft: DateType | number | string, dateRight: DateType | number | string): number;