javascript - 在 jsx 对象中插入 html 标签以进行映射

Question

我在一个对象中有一个字符串，其中包含一些 HTML 标记，我想使用 map 函数打印该对象中的值。

const tableBody = [
  {
    date: '02/08/2019',
    item: 'Renewed your <strong>current Team Plan</strong>'
  },
  {
    date: '05/09/2019',
    item: 'Renewed your current Team Plan 2'
  },
  {
    date: '15/10/2019',
    item: 'Renewed and upgraded to the <strong> Business Plan </strong> with 3 new members'
  }
];


<table>
{tableBody.map(tableBody => (
  <tr>
   <td>{tableBody.date}</td>
   <td>{tableBody.item}</td>
  </tr>
))}
</table>

当我运行这段代码时，我想要 <strong>字符串中的标记编译为 HTML 元素而不是呈现为纯文本。那么有什么办法可以实现这个目标吗？

Answer 1

您应该渲染 ReactElement 或使用 dangerouslySetInnerHTML

const tableBody = [
  {
    date: '02/08/2019',
    item: (
//    v <React.Fragment>
      <>
        Renewed your <strong>current Team Plan</strong>
      </>
    )
  }
];


export default function App() {
  return (
    <FlexBox>
      <table>
//                      v Notice the shadowing in OP's code
        {tableBody.map(tableBody => (
          <tr>
            <td>{tableBody.date}</td>
//                v ReactElement
            <td>{tableBody.item}</td>
          </tr>
        ))}
      </table>

//    v `dangerouslySetInnerHTML` example
      <table>
        <tr>
          <td>{'02/08/2019'}</td>
          <td
            dangerouslySetInnerHTML={{
//                      v A string, exposed to attacks, not recommended
              __html: 'Renewed your <strong>current Team Plan</strong>'
            }}
          />
        </tr>
      </table>
    </FlexBox>
  );
}

Playground :