Method startOf

src/core/core.adapters.ts:56–56

* Returns start of `unit` for the given `timestamp`. * @param timestamp - the input timestamp * @param unit - the unit as string * @param [weekday] - the ISO day of the week with 1 being Monday * and 7 being Sunday (only needed if param *unit* is `isoWeek`).

(this: DateAdapter<T>, timestamp: number, unit: TimeUnit | 'isoWeek', weekday?: number | boolean)

   * and 7 being Sunday (only needed if param *unit* is `isoWeek`).
   */
  startOf(this: DateAdapter<T>, timestamp: number, unit: TimeUnit | 'isoWeek', weekday?: number | boolean): number;
  /**
   * Returns end of `unit` for the given `timestamp`.
   * @param timestamp - the input timestamp