Created
February 6, 2018 12:31
Redux basics
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| const redux = require('redux'); | |
| const createStore = redux.createStore; | |
| const initialState = { | |
| counter: 0, | |
| }; | |
| // Reducer | |
| const rootReducer = (state = initialState, action) => { | |
| if (action.type === 'INC_COUNTER') { | |
| return { ...state, counter: state.counter + 1 }; | |
| } | |
| if (action.type === 'ADD_COUNTER') { | |
| return { ...state, counter: state.counter + action.value }; | |
| } | |
| return state; | |
| }; | |
| // Store | |
| const store = createStore(rootReducer); | |
| console.log(store.getState()); | |
| // Subscription | |
| store.subscribe(() => { | |
| //console.log('[subscription]', store.getState()); | |
| }); | |
| // Dispatching action | |
| store.dispatch({ type: 'INC_COUNTER' }); | |
| store.dispatch({ type: 'ADD_COUNTER', value: 10 }); | |
| console.log(store.getState()); | |
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