Generate to date ranges

dayjs-range.ts

// Credit to https://github.com/iamkun/dayjs/issues/1162?fbclid=IwAR2swchqUZ3ovxzj0MeL7CVbZpN8KVnWx-LgLwIY80UNuGSQ4TRnQC3wIfQ#issuecomment-1694654608

import type { Dayjs, ManipulateType } from 'dayjs';

/**
 * Create a range of Day.js dates between a start and end date.
 *
 * ```js
 * dayjsRange(dayjs('2021-04-03'), dayjs('2021-04-05'), 'day');
 * // => [dayjs('2021-04-03'), dayjs('2021-04-04'), dayjs('2021-04-05')]
 * ```
 */
export function dayjsRange(start: Dayjs, end: Dayjs, unit: ManipulateType) {
  const range = [];
  let current = start;
  while (!current.isAfter(end)) {
    range.push(current);
    current = current.add(1, unit);
  }
  return range;
}

/**
 * Create a range of Day.js dates between a start and end date.
 *
 * ```js
 * getDaysBetween(dayjs('2021-04-03'), dayjs('2021-04-05'));
 * // => [dayjs('2021-04-03'), dayjs('2021-04-04'), dayjs('2021-04-05')]
 * ```
 */
export function getDaysBetween(start: Dayjs, end: Dayjs) {
  const range = [];
  let current = start;
  while (!current.isAfter(end)) {
    range.push(current);
    current = current.add(1, 'days');
  }
  return range;
}