function isSunday(dirtyDate) {
  __WEBPACK_IMPORTED_MODULE_1__lib_requiredArgs_index_js__["a" /* default */](1, arguments);
  return __WEBPACK_IMPORTED_MODULE_0__toDate_index_js__["a" /* default */](dirtyDate).getDay() === 0;
}
@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