react data visualization

getMoviesFromApiAsync() { return fetch(‘http://facebook.github.io/react-native/movies.json‘) .then((response) => response.json()) .then((responseJson) => { return responseJson.movies; }) .catch((error) => { console.error(error); }); }You can also use the/syntax in the ES7 standard in the React native app async await : // 注意这个方法前面有async关键字 async getMoviesFromApi() { try { // 注意这里的await

Import React, {Component} from ' React '; import Record from'./record '; import {Getjson} from' jquery '; class Records extends Component {constructor () {super (); This. State ={error:NULL, isLoaded:false, records: []}; } componentdidmount () {Getjson (' Https://5aa780cb7f6fcb0014ee24aa.mockapi.io/api/v1/records '). Then (res= { This. SetState ({isLoaded:true, records:res}); }, Error= { Th

Use react as the front-end, and php is responsible for obtaining data. Ajax is used to transmit data. After rendering the page, you can perform subsequent operations. However, if ajax is used to load the page for the first rendering, it will feel a little slower. Is there any good solution? Use react as the front-end,

Front-End environment configuration Project Introduction article: Front-end based on react, backend based on. NET core2.0 Development Road (1) Introduction1.VSCode Installation: Https://code.visualstudio.com/Download2.node Downloads: https://nodejs.org/en/V8.9.1 version Download3.CNPM InstallationAfter installing node, NPM is installed by default, for some reason, NPM downloads the package is too slow, so you need to install CNPMInstallation comm

1.react Data flow and communication between components React is a top-down, one-way data stream, passed from the parent node to the child node (via props), and react re-renders all the child nodes if the top-level props changes. Props: Used for the delivery of state between

The mainstream data Flow framework: Flux/reflux/redux Simple/single State tree All actions of the user are distributed to several stores by a unified dispatcher This store holds data that also holds a state of the current page and can only pass information back to the view layer. actions/User Actions Components Container The Reducer store is responsible for distributing action, responding index.ht

Using react as the front end, PHP is responsible for obtaining data. Both are passed by Ajax to pass the data. This way, after rendering the page, the user's subsequent actions are possible. However, if the first render page is loaded with Ajax, it feels a bit slower. Is there any good way to solve it? Reply content: Using

varCommon ={test:function (date) {varXhr=NewXMLHttpRequest (); Xhr.onreadystatechange=function () {if(xhr.readystate==4){ if((xhr.status>= $ xhr.status -|| xhr.status==304) {alert (xhr.responsetext); }Else{alert ("Request was unsuccessful:"+xhr.status); }}} Xhr.open ("Get","Posttest.js",true); Xhr.setrequestheader ("Content-type","Multipart/form-data") xhr.send (date); alert (date); }};module.exports=common;Posttest.js content: The equi