React console 报错信息为什么这么少?

Question

大部分的报错是这样的:
webpack:///./~/react/~/fbjs/lib/warning.js?:45 Warning: bind(): You are binding a component method to the component. React does this for you automatically in a high-performance way, so you

我不是想问这是什么错误, 而是想问, react 能否配置为更完善的错误信息, 比如至少告诉我这个 bing 警告出现在源代码哪一行.

Answer 1

不能，运气好的话可以在调用栈中找到。

Dan Abramov吐槽过：

React is known for its relative lack of pitfalls and small API surface. This makes the few issues it has all the more frustrating, especially for the beginners.

I hope that these issues will be solved by more descriptive warnings in the next releases of React, but in the meantime here is something you, as a React beginner, should know in order to avoid hours of frustration.

另外针对这个报错信息，原因是在使用了React.createClass的情况下不需要给事件的handler额外bindthis。

Answer 2

检查你的代码是否这样的 bind 使用。

<Component onClick={this.handleClick.bind(this)} />