function differenceInSeconds(dirtyDateLeft, dirtyDateRight) {
  __WEBPACK_IMPORTED_MODULE_1__lib_requiredArgs_index_js__["a" /* default */](2, arguments);
  var diff = __WEBPACK_IMPORTED_MODULE_0__differenceInMilliseconds_index_js__["a" /* default */](dirtyDateLeft, dirtyDateRight) / 1000;
  return diff > 0 ? Math.floor(diff) : Math.ceil(diff);
}
@name differenceInSeconds
@category Second Helpers
@summary Get the number of seconds between the given dates.

@description
Get the number of seconds between the given dates.

### 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} dateLeft - the later date
@param {Date|Number} dateRight - the earlier date
@returns {Number} the number of seconds
@throws {TypeError} 2 arguments required

@example
// How many seconds are between
// 2 July 2014 12:30:07.999 and 2 July 2014 12:30:20.000?
var result = differenceInSeconds(
  new Date(2014, 6, 2, 12, 30, 20, 0),
  new Date(2014, 6, 2, 12, 30, 7, 999)
)
//=> 12