Method getNthOrNull

www/data-module/src/data/DataCollection.ts:127–132

(index: number)

  }

  getNthOrNull(index: number): DataType | null {
    if (index >= this.array.length) {
      return null;
    }
    return this.array[index];
  }

  getByIdOrNull(id: string): DataType | null {
    return this.byId.get(id) ?? null;