Method constructor

src/cdk/collections/selection-model.ts:54–70

(
    private _multiple = false,
    initiallySelectedValues?: T[],
    private _emitChanges = true,
    public compareWith?: (o1: T, o2: T) => boolean,
  )

  };

  constructor(
    private _multiple = false,
    initiallySelectedValues?: T[],
    private _emitChanges = true,
    public compareWith?: (o1: T, o2: T) => boolean,
  ) {
    if (initiallySelectedValues && initiallySelectedValues.length) {
      if (_multiple) {
        initiallySelectedValues.forEach(value => this._markSelected(value));
      } else {
        this._markSelected(initiallySelectedValues[0]);
      }

      // Clear the array in order to avoid firing the change event for preselected values.
      this._selectedToEmit.length = 0;
    }
  }

  /**
   * Selects a value or an array of values.