jsx

问题 I'm trying to render an array of named react components, say <Foo /> , <Bar /> , and <Baz /> ,for example. const rendered = []; const getItems = this.props.itemslist.map((item, key) => { const TYPE = item.type; rendered.push(<TYPE data-attributes={attributes} key={key} />); }); return ( <Grid> <Row> {rendered} </Row> </Grid> ); I can iterate over my array and see in the console the array of elements, but they are rendered as empty html elements " <foo></foo><bar></bar><baz></baz> ", and not

问题 To make it more clear , basically what I'm trying to do is like Amazon There will be a bunch of products and once you click on the product ,Only that product and its details will be displayed on the Popup Modal. In my case , I have stored 3 data in an Array, I have mapped it out Which creates 3div and 3Modal Popup with buttons in each. Once I click on the button of 1st div , I want the modal to be open for that first div only. But right now when I click on the button all 3 Modal Popup. I'm

问题 PushNotification.configure({ onNotification: function(notification) { console.log( 'NOTIFICATION:', notification); }, }) notification received form the server when i clicked on it app is opened but onNotification never called. i put this in componentDidMount() and constructor in App.js but it's never called.. help.. 回答1: Did you add the required code into the AndroidManifest.xml? For example : <!--more stuff above--> <service android:name="com.dieam.reactnativepushnotification.modules

问题 My array that I filled with my ajax request result will not appears in my react components unordered list. When I do a console.log of the array I get: [] 0 : "Career" 1 : "Middle College for Technology Careers" 2 : "Careers New Zealand" 3 : "Careers for Veterans 200" 4 : "Northside Health Careers High School" 5 : "Barbie's careers" 6 : "Edward M. Kennedy Academy for Health Careers" 7 : "The Careers Group, University of London" 8 : "Careers advisor" 9 : "Careers advisory service" length : 10

问题 I am attempting to write a test for a react component that sends out a fetch GET request after mounting. The test just needs to check if the component has rendered and when fetch runs I get this: ReferenceError: fetch is not defined . I have searched around and cant seem to find anything that will fix my problem. I am using jest and Test Utils for testing the components. My component code: export class Home extends Component { constructor(props) { ... } componentDidMount() { fetch('/some/path

问题 I've been trying to compile the front end of this guide (git repository here) to get my head round JSX and React. I want to eventually use the code to produce a login screen for a Cordova app. When trying to compile with webpack , for which I have the following package.json file setup: { "name": "frontend", "version": "0.1.0", "private": true, "devDependencies": { "babel-core": "^6.25.0", "babel-loader": "^7.1.1", "babel-preset-es2015": "^6.24.1", "html-webpack-plugin": "^2.30.1", "lodash": "

问题 React-Native documentation mentions that webp is not supported on Android, but says nothing about IOS. Out of the box it does not seem to work, but after installing this plugin https://libraries.io/npm/react-native-webp I can use images downloaded from internet. Problem is that local files give me an error : "{"type":InternalError","message":"react-packager has encountered an internal error, please check your terminal error output for more details"} Unfortunately "react-native log-ios"

问题 I converted my Container into a .jsx file, but now I'm getting the following errors on my HTML elements in the render method: Property does not exist on type 'JSX.IntrinsicElements.div Property does not exist on type 'JSX.IntrinsicElements.h1 package.json { "name": "moonholdings.io", "version": "0.1.0", "private": true, "scripts": { "build-css": "node-sass-chokidar src/ -o src/ --source-map", "watch-css": "npm run build-css && node-sass-chokidar src/ -o src/ --watch --recursive --source-map",

问题 This is how my landing page should load: This is how my landing page does load: On the page that renders wrong, the code for hero, which is cut off at the top, loads the background image just fine with the following code: (React/JSX): <section className="hero-section" style={ { backgroundImage: "url('https://s3.us-east-2.amazonaws.com/housessoldeasily.com/img/bg.jpg')" }> </section> But when I try that same method with the four other images: <div className="propertie-item set-bg" style={ {

问题 I am new to React js and was trying my hands on a very simple hello react kinda web app. But while running, ended up at below error in console. Calling Element.createShadowRoot() for an element which already hosts a shadow root is deprecated. See https://www.chromestatus.com/features/4668884095336448 for more details. Browser: Chrome version 46.0.24 html code: <!DOCTYPE html> <html> <head> <meta charset="UTF-8"/> <script src="https://cdnjs.cloudfare.com/ajax/libs/babel-core/5.8.23/browser.min