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 在并发场景下的问题及解决思路
查看>>
MySQL 基础架构
查看>>
MySQL 基础模块的面试题总结
查看>>
MySQL 备份 Xtrabackup
查看>>
mYSQL 外键约束
查看>>
mysql 多个表关联查询查询时间长的问题
查看>>
mySQL 多个表求多个count
查看>>
mysql 多字段删除重复数据,保留最小id数据
查看>>
MySQL 多表联合查询:UNION 和 JOIN 分析
查看>>
MySQL 大数据量快速插入方法和语句优化
查看>>
mysql 如何给SQL添加索引
查看>>
mysql 字段区分大小写
查看>>
mysql 字段合并问题(group_concat)
查看>>
mysql 字段类型类型
查看>>
MySQL 字符串截取函数,字段截取,字符串截取
查看>>
MySQL 存储引擎
查看>>
mysql 存储过程 注入_mysql 视图 事务 存储过程 SQL注入
查看>>
MySQL 存储过程参数:in、out、inout
查看>>
mysql 存储过程每隔一段时间执行一次
查看>>
mysql 存在update不存在insert
查看>>