Question

我有react-redux app 在开发过程中没有错误，但在生产中，它不起作用。

我已经完全删除了redux-dev-tolls等但没有机会。

我收到了这个错误;

TypeError: Cannot read property 'isLoading' of undefined

我声明signInStatus和isLoading里面的反应渲染函数就像这样;

const {signin, signInStatus} = this.props
const {
    isLoading,
    isSucceeded,
    idErrorMessage,
    passwordErrorMessage,
    generalErrorMessage
} = signInStatus;

连接;

const reduxInjected = connect(({signInStatus}) => ({signInStatus}), {
    signin,
    signInResetForm,
    signinStorage
})(LoginEmailPasswordForm);
....

减速器;

const signInStatus = (state = {isLoading: false, isSucceeded: false}, action) => {
    switch (action.type) {
        // Hot Module Replacement
        case EPIC_END:
            return {isLoading: false, isSucceeded: false};

        case ...:
            return {...state, isLoading: false, isSucceeded: false};

        case ...:
        case ...:
        case ...:
            return {isLoading: true, isSucceeded: false};

        case ...:
        case ...:
            const {accessToken, idToken, expiresIn} = action;
            let expiresAt = JSON.stringify((action.expiresIn * 1000) + new Date().getTime());
            return {isSucceeded: true, token: {accessToken, idToken, expiresAt}};

        case ...:
            return {isSucceeded: true, isLoggedIn: true, token: action.token, user: action.user};

        case ...:
            return {}

        case ...:
            const newState = {}
            const {error} = action;
            ...
            return {...newState, isLoading: false, isSucceeded: false};

        case ...:
            return {...state, isLoggedIn: true, user: action}

        case ...:
            return {}

        default:
            return {...state}
    }
}

您可以看到signInStatus具有初始状态，但它表示它是undefined

可能是什么原因？

谢谢。

Answer 1

这是关于UglifyJsPlugin

plugins: [
    // Don't Minify JS, redux doesn't like it
    // new UglifyJsPlugin({
    //     sourceMap: true,
    //     compress: false,
    // }),
],

Redux reducer状态在生产时未定义

1 个答案: