Method getItem

storage.js:39–45

(key)

    });
  }
  getItem(key) {
    return this._s
      ?
      this.isPromise ? this._s.getItem(key) : Promise.resolve(this._s.getItem(key))
      :
      Promise.resolve();
  }
  setItem(key, value) {
    return this._s
      ?