Antd库:尝试渲染图像时如何处理? [英] Antd library: How to approach when trying to render an image?

问题描述

尝试渲染图像时如何处理? 我在下面尝试，但未显示图片.

How to approach when trying to render an image? I am trying below but its not showing image.

const columns = [
  {
    title: 'image',
    dataIndex: 'notificationImage.url',
    key: 'notificationImage.url',
    render: (record) =>
    //console.log(text, record && record.notificationImage && record.notificationImage.url, index)
    {
      record && record.notificationImage &&
        <img
          width="460" height="345"
          src={record.notificationImage.url} />
    }
  },]

推荐答案

我认为您的代码块应如下所示:

I think your code block should look like this :

添加return

render: (record) =>
    {
      return record && record.notificationImage && // <---- HERE
        <img
          width="460" height="345"
          src={record.notificationImage.url} />
    }

OR

在执行一行时删除花括号

remove curly braces as you have one line execution

render: (record) => record && record.notificationImage &&
        <img
          width="460" height="345"
          src={record.notificationImage.url} />

---

我还添加了代码段，希望能消除您的疑虑

---

I have also added code snippet, I hope that will clear your doubts

const { useState , useEffect } = React;

const App = () => {

  var res = {
    "image" : {
      "url" : "https://i.stack.imgur.com/GLI4g.png?s=328&g=1"
    }
  }

  const getImage = () => {
    res && res.image && <img src={res.image.url} /> 
  }
  
  const getImage2= () => {
    return res && res.image && <img src={res.image.url} /> 
  }
  
  const getImage3= () => res && res.image && <img src={res.image.url} />;

  return (
    <div>
      First :
      {getImage()}
      <hr/>
      Second :
      {getImage2()}
      <hr/>
      Third :
      {getImage3()}
    </div>
  );
}

ReactDOM.render(<App />, document.getElementById('react-root'));

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.8.4/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.8.4/umd/react-dom.production.min.js"></script>
<div id="react-root"></div>

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