reduxed-chrome-storage article: buffered dispatch version

reduxed-chrome-storage-article-buffered-dispatch.js

class ReduxedStorage {
...
  dispatch(action) {
    if (!this.buffStore) {
      this.buffStore = this.createStore(this.reducer, this.state, this.enhancer);
      this.lastState = this.buffStore.getState();
      setTimeout(() => {
        this.buffStore = null;
      }, 100);
    }
    this.buffStore.subscribe(() => {
      const state = this.buffStore.getState();
      if (isEqual(state, this.lastState))
        return;
      this.storage.save(state);
      this.lastState = state;
    });
    return this.buffStore.dispatch(action);
  }
...
}