evs*_*vsc 2 javascript ecmascript-6 reactjs redux react-redux
我尝试在此组件中使用 3 个操作。一个使我退出 Firebase Google Auth(正常工作),另外两个只是将一段状态更改为某个字符串,稍后我将使用该字符串来确定要渲染的组件。
注释掉的mapDispatchToProps工作正常,这就是我习惯的编写方式,使用注销方法的语法是我无法弄清楚的。如何重构以下内容以便 setRoutines 和 setExercises 工作?
组件:
import React from 'react';
import { connect } from "react-redux";
import { firebaseLogout } from '../Auth/Auth.actions';
import { setRoutines, setExercises } from './Profile.actions';
const Profile = ({logout, setRoutines, setExercises}) => (
<React.Fragment>
<button onClick={setRoutines}>My Routines</button>
<button onClick={setExercises}>My Exercises</button>
<button onClick={logout}>Logout</button>
</React.Fragment>
);
const mapDispatchToProps = (dispatch) => ({
logout: () => dispatch(firebaseLogout()),
setRoutines,
setExercises,
});
// const mapDispatchToProps = {
// setRoutines,
// setExercises
// };
export default connect(
undefined,
mapDispatchToProps
)(Profile);
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我的操作文件:
export const setRoutines = () => ({
type: "SET_ROUTINES",
payload: "routines"
});
export const setExercises = () => ({
type: "SET_EXERCISES",
payload: "exercises"
});
export const logout = () => ({
type: 'LOGOUT'
});
export const firebaseLogout = () => {
return () => {
return firebase.auth().signOut();
}
};
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我的减速器文件:
export default (state = {view:'routines'}, action) => {
switch (action.type) {
case 'SET_ROUTINES':
return {
...state,
view: action.payload
};
case 'SET_EXERCISES':
return {
...state,
view: action.payload
};
case 'LOGOUT':
return {};
default:
return state;
}
};
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小智 5
通过将其修改mapDispatchToProps为下面提到的格式应该有助于创建自动分派的绑定操作创建者。
const mapDispatchToProps = (dispatch) => ({
logout: () => dispatch(firebaseLogout()),
boundRoutines: () => dispatch(setRoutines()),
boundExercises: () => dispatch(setExercises()),
});
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创建绑定动作创建者后,我们可以按如下方式调用创建者。
const Profile = ({logout, boundRoutines, boundExercises}) => (
<React.Fragment>
<button onClick={boundRoutines}>My Routines</button>
<button onClick={boundExercises}>My Exercises</button>
<button onClick={logout}>Logout</button>
</React.Fragment>
);
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