博客
关于我
React 学习笔记 —— Fragment
阅读量:563 次
发布时间:2019-03-09

本文共 1071 字,大约阅读时间需要 3 分钟。

Handling Multiple Roots in React JSX

In React's JSX syntax, it's essential to use a single root tag. To avoid unnecessary extra div tags and hierarchical structures, we can use two main approaches.

Fragment Approach

The Fragment component is designed to be ignored in rendering. It allows embedding multiple root components without adding extra DOM nodes to the tree. Perfect for when you need to #[key] your fragments. If you have loops and dynamic content, specify the key attribute for each fragment is crucial.

Example:

import {Fragment} from 'react';...      test     test

Empty Tag Approach

Using empty tags is another great way to embed multiple root nodes without creating real DOM elements. They don’t accept any attributes since they’re meant purely for embedding HTML.

Example:

...   test   test

The key difference between Empty Tags and Fragments is that Fragments can only accept **key** attribute, which is important when you're dealing with list-like structures. However, Empty Tags have no such limitations and are often used for simple content embedding.

转载地址:http://ajxpz.baihongyu.com/

你可能感兴趣的文章
mysql 批量插入
查看>>
Mysql 报错 Field 'id' doesn't have a default value
查看>>
MySQL 报错:Duplicate entry 'xxx' for key 'UNIQ_XXXX'
查看>>
Mysql 拼接多个字段作为查询条件查询方法
查看>>
mysql 排序id_mysql如何按特定id排序
查看>>
Mysql 提示:Communication link failure
查看>>
mysql 插入是否成功_PDO mysql:如何知道插入是否成功
查看>>
Mysql 数据库InnoDB存储引擎中主要组件的刷新清理条件:脏页、RedoLog重做日志、Insert Buffer或ChangeBuffer、Undo Log
查看>>
mysql 数据库中 count(*),count(1),count(列名)区别和效率问题
查看>>
mysql 数据库备份及ibdata1的瘦身
查看>>
MySQL 数据库备份种类以及常用备份工具汇总
查看>>
mysql 数据库存储引擎怎么选择?快来看看性能测试吧
查看>>
MySQL 数据库操作指南:学习如何使用 Python 进行增删改查操作
查看>>
MySQL 数据库的高可用性分析
查看>>
MySQL 数据库设计总结
查看>>
Mysql 数据库重置ID排序
查看>>
Mysql 数据类型一日期
查看>>
MySQL 数据类型和属性
查看>>
mysql 敲错命令 想取消怎么办?
查看>>
Mysql 整形列的字节与存储范围
查看>>