Method _handleKeydown

src/material/sort/sort-header.ts:182–187

(event: KeyboardEvent)

  }

  _handleKeydown(event: KeyboardEvent) {
    if (event.keyCode === SPACE || event.keyCode === ENTER) {
      event.preventDefault();
      this._toggleOnInteraction();
    }
  }

  /** Whether this MatSortHeader is currently sorted in either ascending or descending order. */
  _isSorted() {