isLastDayOfMonth
import { isLastDayOfMonth } from "https://esm.sh/v135/date-fns@3.6.0/index.d.mts";@example
// Is 28 February 2014 the last day of a month?
const result = isLastDayOfMonth(new Date(2014, 1, 28))
//=> true
function isLastDayOfMonth<DateType extends Date>(date: DateType | number | string): boolean;