Method _hasSameMonthAndYear

src/material/datepicker/month-view.ts:570–577

Checks whether the 2 dates are non-null and fall within the same month of the same year.

(d1: D | null, d2: D | null)

  /** Checks whether the 2 dates are non-null and fall within the same month of the same year. */
  private _hasSameMonthAndYear(d1: D | null, d2: D | null): boolean {
    return !!(
      d1 &&
      d2 &&
      this._dateAdapter.getMonth(d1) == this._dateAdapter.getMonth(d2) &&
      this._dateAdapter.getYear(d1) == this._dateAdapter.getYear(d2)
    );
  }

  /** Gets the value that will be used to one cell to another. */
  private _getCellCompareValue(date: D | null): number | null {