TypeError：无法读取未定义React的属性'forEach'

Question

我正在尝试从MDB数据库中获取数据以显示电影。最初，我实现了一个click事件来调用数据，但未发现任何错误。直到发生这种情况！

这是代码：

this.performSearch()
    }
    performSearch() {
        console.log("Perform search using moviedb")
        const urlString = "https://api.themoviedb.org/3/search/movie?query=avengers&api_key=1b5adf76a72a13bad99b8fc0c68cb085"
        $.ajax({urlString,
            success: (searchResults) => {
            console.log("Fetched data successfully")
                // console.log(searchResults)
                const results = searchResults.results

                var movieRows = []

                results.forEach((movie) => {
                  console.log(movie.title)

                });
                  const movie = <MovieRow movie={movie}/>
                  movieRows.push(movie)

                this.setState({rows: movieRows})   

Answer 1

您没有结果。为了防止这种情况，您可以更改

const results = searchResults.results

到

const results = searchResults.results ? searchResults.results : []