React路上遇到的Bug

在学习React的道路上,经常遇到很多的bug,而且发现它的bug很不好找到错误在哪里,尤其像下面的这些:

但是我们可以利用这样一种方法:从控制台中找到提供的链接

1. Error: Minified React error #109;

 Error: Minified React error #109;

visit http://facebook.github.io/react/docs/error-decoder.html?invariant=109&args[]=Form for the full message or use the non-minified dev environment for full errors and additional helpful warnings.

从该链接中可以找到:错误原因:没有return返回数据

Form.render(): A valid React element (or null) must be returned. You may have returned undefined, an array or some other invalid object.

2. Uncaught TypeError: Super expression must either be null or a function, not undefined

错误原因:就在super之前查找代码的错误,一般是拼写错误;大都是React.Component的C没有大写;

 3.TypeError: Cannot read property 'func' of undefined

在使用react-router的时候,要注意下载的版本问题;

import {Router,hashHistory,browserHistory,Route,IndexRoute,IndexRedirect,Redirect} from 'react-router'

上面下载的版本要使用:

"react": "^15.6.1",
"react-dom": "^15.6.1",
"react-mixin": "^4.0.0",
"react-router": "^2.8.1",
原文地址:https://www.cnblogs.com/naniandongzhi/p/8278771.html