Reactjs 胡克斯与雷杜传奇
我正在学习redux挂钩,并想知道如何将其与redux传奇一起使用 目前用saga编写的代码如下Reactjs 胡克斯与雷杜传奇,reactjs,redux,react-hooks,Reactjs,Redux,React Hooks,我正在学习redux挂钩,并想知道如何将其与redux传奇一起使用 目前用saga编写的代码如下 export const getCenters = () => ({ type: types.CENTERS_REQUEST, }); import { DEFAULT_ERROR_MSG } from '../../constants'; import { instance as centerProvider } from '../services/centerProvider';
export const getCenters = () => ({
type: types.CENTERS_REQUEST,
});
import { DEFAULT_ERROR_MSG } from '../../constants';
import { instance as centerProvider } from '../services/centerProvider';
function* fetchCenters() {
try {
const response = yield call(centerProvider.getCenters);
const centers = response.data.data.centers;
// dispatch a success action to the store
yield put({ type: types.CENTERS_SUCCESS, centers});
} catch (error) {
// dispatch a failure action to the store with the error
yield put(DEFAULT_ERROR_MSG);
}
}
export function* watchCenterRequest() {
yield takeLatest(types.CENTERS_REQUEST, fetchCenters);
}
export default function* centerSaga() {
yield all([
watchCenterRequest()
]);
}
centers.js
saga文件的定义如下
export const getCenters = () => ({
type: types.CENTERS_REQUEST,
});
import { DEFAULT_ERROR_MSG } from '../../constants';
import { instance as centerProvider } from '../services/centerProvider';
function* fetchCenters() {
try {
const response = yield call(centerProvider.getCenters);
const centers = response.data.data.centers;
// dispatch a success action to the store
yield put({ type: types.CENTERS_SUCCESS, centers});
} catch (error) {
// dispatch a failure action to the store with the error
yield put(DEFAULT_ERROR_MSG);
}
}
export function* watchCenterRequest() {
yield takeLatest(types.CENTERS_REQUEST, fetchCenters);
}
export default function* centerSaga() {
yield all([
watchCenterRequest()
]);
}
所以问题是,
- 如果我们使用钩子,我们还需要redux吗
- 我们如何使用钩子重写上面的代码
useReducer
hook代替redux。但是,如果在DOM树的不同分支中深度嵌套的不同组件之间有一个共享状态,那么使用useReducer
实现可能有点复杂。因此,使用redux和saga与hook并不矛盾。如果喜欢功能组件而不是类组件,则只需要挂钩
中心,以实现如下功能组件:
function Centers(props) {
useEffect(() => {
props.getCenters();
}, []);
return (
//render what you need here
);
}