08 2021 档案

fetch方法ajax请求
摘要：<script> let bt = document.querySelector("input"); let mydiv = document.querySelector("div"); let xhr = "null"; // fetch为全局对象的方法，非js库 bt.onclick = fun 阅读全文
posted @ 2021-08-02 22:29 贾正直 阅读(48) 评论(0) 推荐(0)
ajax各种属性
摘要：<script> let bt = document.querySelector("input"); let mydiv = document.querySelector("div"); let xhr = "null"; bt.onclick = function () { xhr = new X 阅读全文
posted @ 2021-08-02 21:59 贾正直 阅读(83) 评论(0) 推荐(0)
ajax简单用法
摘要：请求端 <body> <div> hello world</div> <input type="button" value="ajax"> </body> <style> div { width: 200px; height: 300px; border: aquamarine 1px solid; 阅读全文
posted @ 2021-08-02 20:51 贾正直 阅读(32) 评论(0) 推荐(0)
node express启动服务
摘要：let express = require("express"); let app1 = express(); app1.get("/", (r, rs) => { rs.send("收到") }) app1.listen(8000, () => { console.log( "8000服务器启动" 阅读全文
posted @ 2021-08-02 11:33 贾正直 阅读(195) 评论(0) 推荐(0)
es6模块定义与引入
摘要：定义 export default { uname: "li", hello: function () { console.log("hello"); } } 引入 <body> <script type="module"> import * as m from "./app.js" import 阅读全文
posted @ 2021-08-01 20:22 贾正直 阅读(97) 评论(0) 推荐(0)
本地模块开发跨域解决办法
摘要：问题 Access to script at 'file:///C:/Users/limakilo0000/OneDrive/limakilo2020.github.io/app.js' from origin 'null' has been blocked by CORS policy: Cros 阅读全文
posted @ 2021-08-01 20:06 贾正直 阅读(116) 评论(0) 推荐(0)
promise对象
摘要：基本用法 let p = new Promise(function (resovle, reject) { let data = "yes or not"; // resovle(data); reject(data); //调用then第二个方法 }) p.then(function (value 阅读全文
posted @ 2021-08-01 15:01 贾正直 阅读(31) 评论(0) 推荐(0)