Method set

packages/core/src/lib/list-unit.ts:126–139

* Sets the item on the given index in the list-value. \ * Dispatches a new copy of the value, without mutating the current-value. * * It only works if the Unit is not frozen, and the index is valid-numeric. * * @param index The index of the item. \ * A negative index is nor

(index: number, item: Item)

   * @category Custom ListUnit
   */
  set(index: number, item: Item): void {
    if (this.isFrozen || !isValidIndex(index)) {
      return;
    }
    this.checkSerializabilityMaybe(item);

    const listShallowCopy = [...this.rawValue()];
    listShallowCopy[normalizeIndex(index, this.length)] = this.deepCopyMaybe(item);
    this.updateValueAndCache(listShallowCopy);

    if (this.eventsSubject?.observers.length && !this.isMuted) {
      this.eventsSubject.next(new EventListUnitSet(index, item));
    }
  }

  /**
   * Inserts items to the list-{@link value}. \