Method _propagateChanges

src/material/chips/chip-listbox.ts:318–330

Emits change event to set the model value.

()

  /** Emits change event to set the model value. */
  private _propagateChanges(): void {
    let valueToEmit: any = null;

    if (Array.isArray(this.selected)) {
      valueToEmit = this.selected.map(chip => chip.value);
    } else {
      valueToEmit = this.selected ? this.selected.value : undefined;
    }
    this._value = valueToEmit;
    this.change.emit(new MatChipListboxChange(this, valueToEmit));
    this._onChange(valueToEmit);
    this._changeDetectorRef.markForCheck();
  }

  /**
   * Deselects every chip in the listbox.