Method next

lib/CacheFacade.js:70–74

(i)

		 * @returns {Promise<T>} promise with the data
		 */
		const next = (i) =>
			this._items[i].getPromise().then((result) => {
				if (result !== undefined) return result;
				if (++i < this._items.length) return next(i);
			});
		return next(0);
	}