src/reducers/genres.js
import { List, Map } from 'immutable'import constants from '../actions/constants' const init = List([]) const genre = (state, action) => { switch (action.type) { case constants.genre.ADD.SUCCESS: return Map({ name: action.name }) default: return state }} Similar blocks of code found in 2 locations. Consider refactoring.const genres = (state = init, action) => { switch (action.type) { case constants.genre.ADD.SUCCESS: return state.push(genre(undefined, action)) default: return state }} export default genres