为什么图像不加载，当试图从数组中加载时做出反应

Question

我有以下代码，我试图从阵列加载图像，如果我尝试加载单个图像它工作正常，但如果我尝试加载多个图像它不显示任何图像，我的 div test 在 dom.

import React, {Component} from 'react';

class Slider extends Component {

    render() {
        const myItems = [{source_image: '1.jpg'}, {source_image: '2.jpg'}, {source_image: '3.jpg'}];
        return (



                <div id="test">
                    {myItems.map(function (a) {

                            <img src={"images/"+a.source_image}/>
                        }
                    )}
                </div>

        );
    }
}

export default Slider;

Answer 1

您在地图中忘记了 return：

{myItems.map(function (a) {
        return <img src={"images/"+a.source_image}/> // here
    })
}

{myItems.map(a => <img src={"images/"+a.source_image}/>)} //this is more clear, I think

为什么图像不加载，当试图从数组中加载时做出反应

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