Choosing the Type at Runtime
【Choosing the Type at Runtime】
You cannot use a general expression as the React element type. If you do want to use a general expression to indicate the type of the element, just assign it to a capitalized variable first. This often comes up when you want to render a different component based on a prop:
To fix this, we will assign the type to a capitalized variable first:
参考:https://facebook.github.io/react/docs/jsx-in-depth.html#user-defined-components-must-be-capitalized
Choosing the Type at Runtime的更多相关文章
- Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute'
[TypeLoadException: Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from as ...
- Resource Path Location Type Target runtime Apache Tomcat v6.0 is not defined(项目报错)已解决
我换了开发工具后,导入的项目不是这里报错就是那里不错.不过,我喜欢.在tomcat里面部署项目后,定位到报错行时,总是提示我这句话:Description Resource Path Location ...
- "Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b7
1.错误背景 系统安装了.net framework4.0.4.5,项目先使用VS2013(4.5)开发,后来又重新用VS2010开发(4.0),运行时出现这个错误 2.错误原因 In .Net 4. ...
- Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly 'mscorlib 的一种情形
没有引用任何.net 4.5的东西,也没有引用 Newtonsoft.dll,原因是引用了微软的tlb类型库,引用方法如 https://www.cnblogs.com/nanfei/p/108798 ...
- JavaScript 和 React,React用了大量语法糖,让JS编写更方便。
https://reactjs.org/docs/higher-order-components.htmlhttps://codepen.io/gaearon/pen/WooRWa?editors=0 ...
- props & children
一. choosing the type at runtime import React from 'react'; import { PhotoStory, VideoStory } from '. ...
- Run-time type information--RTTI
In computer programming, run-time type information or run-time type identification (RTTI)[1] refers ...
- linux驱动程序之电源管理之Run-time PM 详解(4)
Run-time PM. 每个device或者bus都会向run-time PM core注册3个callback struct dev_pm_ops { ... int (*runtime_su ...
- Target runtime Apache Tomcat v6.0 is not defined. phyy Unknown Faceted Project Problem
Description Resource Path Location TypeTarget runtime Apache Tomcat v6.0 is not defined. phyy Unknow ...
随机推荐
- My sql 自增 虚拟列。
在MYSQL 是没有类似MSSQL 2008 / oracle 数据库开窗函数 over() ,rank(), DENSE_RANK() ,ROW_NUMBER() 又叫窗口函数 . 当我们需要在查询 ...
- Mybatis六(SSM框架)
SSM三大框架整合详细教程(SPRING+SPRINGMVC+MYBATIS) 使用 SSM ( Spring . SpringMVC 和 Mybatis )已经有三个多月了,项目在技术上已经没有什么 ...
- Mapper的.xml文件的delete的参数问题
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE mapper PUBLIC "-// ...
- C语言中的__LINE__宏
在C语言中,有这么四个预定义的宏: 当前文件: __FILE__ 当前行号: __LINE__ 当前日期: __DATE__ 当前时间: __TIME__ 这4个宏在代码编译的时候,由编译器替换成实际 ...
- element UI select 设定默认值
要为select设定默认值,有两个步骤 1.数据中,声明一个变量param:该变量的值设为你想设定的select option中value 2.控件的 v-model 绑定 param 即可 < ...
- delphi ios info.plist
delphi ios info.plist delphi修改info.plist.TemplateiOS.xml文件,然后自动生成project1.info.plist http://docwiki. ...
- 解决idea启动项目报错:Unable to open debugger port(127.0.0.1:60157):java.net.SocketException"socket closed
原因分析: 1.可能是端口被占用导致,其他软件占用了tomcat的端口. 2.可能是在打开Tomcat的情况下关闭了Eclipse.idea等开发工具,或是Eclipse.idea非正常关闭(如电脑. ...
- Java快速开发平台,JEECG 3.7.6性能增强版本发布
JEECG 3.7.6 性能增强版本发布 导读 ⊙Vue SPA单页面应用 ⊙Datagrid标签实现不同风格切换,支持BootstrapTable.EasyUI ⊙灵活通用代码生成器工厂 ...
- 2018SDIBT_国庆个人第二场
A.codeforces1038A You are given a string ss of length nn, which consists only of the first kk letter ...
- Oracle数据库中的数据出错的解决办法
http://www.jcwcn.com/article/database/oracle/ 今天上班犯了一个严重的错误:把我们系统所使用的Oracle数据库中的数据给改掉了!当发现自己改错时,顿时冒了 ...