getAllDaysInCalendar

code:mod.ts

import {

endOfMonth,

startOfMonth,

startOfWeek,

endOfWeek,

eachDayOfInterval,

isSunday

} from "../date-fns/mod.ts";

export const getAllDaysInCalendar = (date: Date): Date[][] => {

const start = startOfWeek(startOfMonth(date));

const end = endOfWeek(endOfMonth(date));

const days = eachDayOfInterval({ start, end });

return days.reduce(

(acc, cur, i) => {

if (isSunday(cur)) {

acc.push(cur);

return acc;

}

acc.at(-1)!.push(cur);

return acc;

[]

);

};