Method _markSelected

src/cdk/collections/selection-model.ts:210–225

Selects a value.

(value: T)

  /** Selects a value. */
  private _markSelected(value: T) {
    value = this._getConcreteValue(value);
    if (!this.isSelected(value)) {
      if (!this._multiple) {
        this._unmarkAll();
      }

      if (!this.isSelected(value)) {
        this._selection.add(value);
      }

      if (this._emitChanges) {
        this._selectedToEmit.push(value);
      }
    }
  }

  /** Deselects a value. */
  private _unmarkSelected(value: T) {