JSPM – redux-blower@0.1.0

Package Exports

redux-blower

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Readme

redux-blower

redux-blower is a tiny library that helps you to improve the readability and the performance of your Redux applications.

⚠️ Caution Still work in progress. Library will be finished in next couple of days!

How?

Typical Redux application has couple of reducers which are usually functions with big switch statements. When an action is triggered, Redux is going through ALL reducers, ALL switch statements and ALL cases in order to decide if something should happen. Imagine that you have a Redux application with 100 reducers of average 5 case callbacks. That would mean that for each triggered action up to 500 comparisons has to be made. Additionally reducers will most-likely end up as functions with high complexity and they are not easy to read. Now let me show you what redux-blower can do!

const actions = [
  'counter:INCREMENT',
  'counter:DECREMENT'
];

const [inc, dec] = actions;

const reducer = createReducer({
  initialState: 0,
  listenTo: actions,
  [inc]() {
    return this.state + action.payload;
  },
  [dec](state, action) {
    return state - action;
  }
});

reducer(0, { type: 'counter:INCREMENT', payload: 2 }); // => 2
reducer(5, { type: 'counter:DECREMENT', payload: 5 }); // => 0

In the previous example the counterReducer will only react to action that belongs to counter group. If an action of different type is fired, then only one comparison will be done for counterReducer.

All is working as expected

License

The MIT License (MIT) - See file 'LICENSE' in this project