Function isSunday

pkgs/core/src/isSunday/index.ts:27–32

(
  date: DateArg<Date> & {},
  options?: IsSundayOptions | undefined,
)

 * //=> true
 */
export function isSunday(
  date: DateArg<Date> & {},
  options?: IsSundayOptions | undefined,
): boolean {
  return toDate(date, options?.in).getDay() === 0;
}