javascript - 每当我用 PersistGate 包装我的应用程序时,它都会在一个组件中给我“TypeError:users.map is not a function”,否则它可以正常工作
问题描述
正如标题所说,我正在通过我从 UserCardList 组件中的 api 获得的数组进行映射,它工作正常,但是一旦我用 PersistGate 包装 App,它就会给我“TypeError:users.map is not a function”和错误消息来自redux logger的是“redux-persist:persist key”root“的持久化超时。我真的不知道我做错了什么。
任何帮助将不胜感激。
index.js
import React from "react";
import ReactDOM from "react-dom";
import { BrowserRouter } from "react-router-dom";
import { Provider } from "react-redux";
import { PersistGate } from "redux-persist/integration/react";
import { store, persistor } from "./redux/store";
import "./index.css";
import "tachyons";
import App from "./containers/App";
ReactDOM.render(
<Provider store={store}>
<BrowserRouter>
<PersistGate persistor={persistor}>
<App />
</PersistGate>
</BrowserRouter>
</Provider>,
document.getElementById("root")
还原商店
import { createStore, applyMiddleware } from "redux";
import { persistStore } from "redux-persist";
import thunkMiddleware from "redux-thunk";
import { createLogger } from "redux-logger";
import rootReducer from "../redux/root-reducer";
const logger = createLogger();
const middlewares = [logger, thunkMiddleware];
export const store = createStore(rootReducer, applyMiddleware(...middlewares));
export const persistor = persistStore(store);
export default { store, persistor };
根减速器
import { combineReducers } from "redux";
import { persistReducer } from "redux-persist";
import storage from "redux-persist/lib/storage";
import requestUsers from "./reducers";
const persistConfig = {
key: "root",
storage,
whitelist: ["users"],
};
const rootReducer = combineReducers({
users: requestUsers,
});
export default persistReducer(persistConfig, rootReducer);
UserCardList 组件
import React, { Fragment } from "react";
import UserCard from "./UserCard";
const UserCardList = ({ users }) => {
return (
<Fragment>
<h1 className="f1"> Users </h1>
{users.map((user) => {
return (
<UserCard
key={user.login.uuid}
image={user.picture.large}
firstName={user.name.first}
lastName={user.name.last}
email={user.email}
city={user.location.city}
country={user.location.country}
/>
);
})}
</Fragment>
);
};
export default UserCardList;
解决方案
我在 redux 商店看到你有这个:
export const store = createStore(rootReducer, applyMiddleware(...middlewares));
export const persistor = persistStore(store);
// you dont need line below, you exported store and persistore in lines above
export default { store, persistor };