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import toDate from '../toDate/index.ts'import requiredArgs from '../_lib/requiredArgs/index.ts'
/** * @name isSunday * @category Weekday Helpers * @summary Is the given date Sunday? * * @description * Is the given date Sunday? * * ### v2.0.0 breaking changes: * * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). * * @param {Date|Number} date - the date to check * @returns {Boolean} the date is Sunday * @throws {TypeError} 1 argument required * * @example * // Is 21 September 2014 Sunday? * var result = isSunday(new Date(2014, 8, 21)) * //=> true */export default function isSunday(dirtyDate: Date | number): boolean {  requiredArgs(1, arguments)
  return toDate(dirtyDate).getDay() === 0}