redux-actions有两大法宝createAction和handleActions.
createAction
原来创建action:
const startAction = () => ({ type: START });
使用redux-actions创建action:
import { createAction } from 'redux-actions';
const startAction = createAction(START);
handleActions
原来reducer操作state写法要使用switch或if else来匹配:
function timer(state = defaultState, action) {
switch (action.type) {
case START:
return { ...state, runStatus: true };
case STOP:
return { ...state, runStatus: false };
case RESET:
return { ...state, seconds: 0 };
case RUN_TIMER:
return { ...state, seconds: state.seconds + 1 };
default:
return state;
}
}
使用redux-actions``reducer操作state:
const timer = handleActions({
START: (state, action) => ({ ...state, runStatus: true }),
STOP: (state, action) => ({ ...state, runStatus: false }),
RESET: (state, action) => ({ ...state, seconds: 0 }),
RUN_TIMER: (state, action) => ({ ...state, seconds: state.seconds + 1 }),
}, defaultState);
