Ajax native operations versus Node JS operations?

AJAX technology relies heavily on XMLHttpRequest (XHR) DOM objects. It can construct HTTP requests, send them, and get the result of the request

Steps for Ajax native operations:

// 1. Create an object const XHR =new XMLHttpRequest(); // 2. Const url=""; To send the request to the server, we use the open() and send() methods of the XMLHttpRequest object: xhr.open("method","url") // 4. Xhr.send () xhr.send() xhr.send() Xhr.onreadystatechange =()=>{if(xhr.readyState==4&&xhr.status==200){ console.log("xhr.response"); }} nodejs // import module const XMLHttpRequest=require('xmlhttprequest-ssl'). // 1. Create an object const XHR =new XMLHttpRequest(); / / 2. The request url address const = 'http://192.168.1.24:8080/wx/category/list'; Initialize the request (to send the request to the server, we use the open() and send() methods of the XMLHttpRequest object: xhr.open("get",url); Xhr. send(null); / / 5. When the request is completed to perform XHR. The onload () = = > {the console. The log (' -- -- -- -- - > '+ XHR. The readyState); if(xhr.status==200){ console.log(xhr.responseText); }else{console.log(' Request error! '); }}Copy the code