code: function clear$2(callback) {
      var self = this;
      var promise = self.ready().then(function () {
          var keyPrefix = self._dbInfo.keyPrefix;
  
          for (var i = localStorage.length - 1; i >= 0; i--) {
              var key = localStorage.key(i);
  
              if (key.indexOf(keyPrefix) === 0) {
                  localStorage.removeItem(key);
              }
          }
      });
  
      executeCallback(promise, callback);
      return promise;
  }
docs: Remove all keys from the datastore, effectively destroying all data in the app's key/value store!