A template for object function based reducers.

reducer_template

import Immutable from 'immutable';
import _ from 'lodash';

const initialState = Immutable.Map({
  data: 5
})

const reducers = {
    FILTER_EDIT: (state, {data}) => state.merge({data}),
    FILTER_INC: (state) => state.updateIn(['data'], val => val+1),
};

export default function reducer(state = initialState, action = {}) {
    if (action.type in reducers)
	    return reducers[action.type](state, action.payload);
    return state;
}