我有以下内容：import React from 'react'; import {render} from 'react-dom';class TShirt extends React.Component {render () {return <div className="thsirt">{this.props.name}</div>;} }class FirstName extends React.Component {propTypes: {name: React.PropTypes.string.isRequired}constructor(props) {super(props);this.state = {submitted: false};}getName () {var name = this.refs.firstName.value;this.setSta...
给定以下组件：export function App() {return withApollo(<BrowserRouter><MatchListRouteHandler /></BrowserRouter>); }// MatchListRouteHandler export const Query = addTypenameToDocument(gql`query GetMatches {matches {id}} `);export default graphql(Query)(MatchListRouteHandler);和测试用例：it('renders without crashing', () => {const div = document.createElement('div');ReactDOM.render(<App />, div); })...
我在scala-js中为react-native编写包装器lazy val reactNative = js.Dynamic.global.require("react-native")val View = reactNative.Viewval component = ReactNativeB[Unit]("NativeYeah").render(P => {reactNative.createElement(View,null)}).buildUreactNative.AppRegistry.registerComponent("iOSscala", () => component())组件注册良好,但是在创建View元素时失败！null is not a function (evaluating ‘autoGenerateWrap...
我试图在我的反应仪表板应用程序中实现semantic-ui-react modal,我创建了一个ModalManager组件,它将与Redux一起用于管理Modal_Open和Modal_Close的状态. Redux部分工作得很好但是,在渲染期间我只看到了“Semantic-UI-React-Modal组件”的问题.下面是错误信息invariant.js?7313:42 Uncaught Error: Portal.render(): A valid React element (or null) must be returned. You may have returned undefined, an array or some other i...
我是react.js的初学者. 我收到了这个错误：Super expression must either be null or a function, not undefined我的浏览器chrome控制台中的完整错误输出：Uncaught TypeError: Super expression must either be null or afunction, not undefinedat _inherits (bundle.js:21166)at bundle.js:21172at Object.184.react (bundle.js:21196)at s (bundle.js:1)at e (bundle.js:1)at bundle.js:1我的代码：const React=require('react...
我从react-native运行应用程序时在仿真器/设备上收到以下错误消息.** ERROR **The development server returned response error code: 500URL: http: //10.0.2.2:8081/index.delta?platform=android&dev=true&minify=falseBody: {"type": "TransformError","lineNumber": 0,"errors": [{"description": "/Users/admin/Documents/PULSE/Phase II/Projects/pulse-mobile-common-rn/App.js: Cannot read property 'bindings' of null"...