Method keys

typings/localforage.d.ts:30–30

(callback?: (err: any, keys: string[]) => void)

    key(keyIndex: number, callback?: (err: any, key: string) => void): Promise<string>;

    keys(callback?: (err: any, keys: string[]) => void): Promise<string[]>;

    iterate<T, U>(iteratee: (value: T, key: string, iterationNumber: number) => U,
            callback?: (err: any, result: U) => void): Promise<U>;