Curried 函数导致错误，但如果没有 Curried 则有效

Question

export const postMoviePopular = url = dispatch => {

    const data = axios.get(url);

    dispatch(saveMoviePopular(data));

}

const saveMoviePopular = payload => {

    return {

        type: POST_MOVIE_POPULAR,

        payload

    }

}

这是我的代码不起作用，因为它是柯里化的，但如果它不是像下面一样柯里化，它可以工作，这是为什么？

export const postMoviePopular = url => {

    return dispatch => {

        const data = axios.get(url);

        dispatch(saveMoviePopular(data));

    }    

} 

我想知道它是否与我调用 mapDispatchToProps 的方式有关？？？

componentDidMount() {

        this.props.postMDBConfig(`https://api.themoviedb.org/3/configuration?api_key=${this.props.apiKey}`);

        this.props.postMoviePopular(`https://api.themoviedb.org/3/movie/popular?api_key=${this.props.apiKey}&language=en-US&page=1&region=US`)

    }

const mapDispatchToProps = (dispatch) => {

    return {

        postMDBConfig: url => dispatch(postMDBConfig(url)),

        postMoviePopular: url => dispatch(postMoviePopular(url))

    }

}

Answer 1

你需要一个return语句。还有一个箭头。export const postMoviePopular = url => dispatch => {    const data = axios.get(url);    return dispatch(saveMoviePopular(data));}