isSameMonth
import { isSameMonth } from "https://esm.sh/v135/date-fns@3.6.0/index.d.mts";@example
// Are 2 September 2014 and 25 September 2014 in the same month?
const result = isSameMonth(new Date(2014, 8, 2), new Date(2014, 8, 25))
//=> true
@example
// Are 2 September 2014 and 25 September 2015 in the same month?
const result = isSameMonth(new Date(2014, 8, 2), new Date(2015, 8, 25))
//=> false
function isSameMonth<DateType extends Date>(dateLeft: DateType | number | string, dateRight: DateType | number | string): boolean;