Flow,ReactJS和ES6类的错误

Question

为什么会出现这些错误flow.我正在使用React和ES6类.代码示例如下:

UPDATE

基于这个例子我几乎得到了这个工作:https: //flowtype.org/docs/react.html#defining-components-as-react-component-subclasses

我摆脱了大部分Flow错误,但现在app运行时失败了.我认为这是ReactJS没有剥离Flow或Babel类的东西.如果我在下面的代码中注释掉Flow类型defs,我不会收到此错误.

我正在运行我的应用程序 watchify -t [ babelify ] app.js -o ./build/app.js

SyntaxError:/Users/carlf/Documents/dev/reactjs/FlyTweet/app/views/posts/MyNewPostForm.js:缺少类属性转换.解析文件时:/Users/carlf/Documents/dev/reactjs/FlyTweet/app/views/posts/MyNewPostForm.js

流量错误:

app/views/posts/MyNewPostForm.js:51 51:var myPostTxt = ReactDOM.findDOMNode(this.Refs.content).value; ^^^^属性Refs.在15中找不到属性:导出默认类MyNewPostForm扩展React.Component {^^^^^^^^^^^^^ MyNewPostForm

来自package.json

  "dependencies": {
    "babel-preset-react": "6.5.0",
    "babelify": "7.3.0",
    "react": "15.1.0",
    "react-dom": "15.1.0",
    "react-router": "2.4.1"
  }

反应组件

export default class MyNewPostForm extends React.Component {

  // START Flow type definitions.
  MAX_POST_CHARS: number; 

  state: {
      charsRemaining: number,
      SendButtonDisabled: boolean
  };

  handleChange: () => void;
  onSubmit: () => void;
  // END Flow type definitions.

  constructor() {
    super();

    this.MAX_POST_CHARS = 139;

    this.state = {
        charsRemaining: this.MAX_POST_CHARS,
        SendButtonDisabled: true
    };

   this.handleChange = this.handleChange.bind(this);    
   this.onSubmit = this.onSubmit.bind(this);    

  }

  handleChange() {
     var myPostTxt = ReactDOM.findDOMNode(this.refs.content).value;

     // Do something here.
  }

Answer 1

唯一的流程错误可能是大写 RRefs吗？在您提供的代码中它是小写的，但在错误消息中它是大写的。