initial-scale=1.0"><title>Document</title></head><body><script>//定义构造函数,类functionStudent(name,age){this.name=name;this.age=age;this.show=function(){console.log("大家好,我是"+this.name+",今年"+this.age
所有对象共有的内部属性共12个:[[ptototype]]、[[Class]]、[[Extensible]]、[[Get]]、[[GetOwnProperty]]、[[GetProperty]]、[[Put]]、[[CanPut]]、[[HasProperty]]、[[Delete]]、[[DefaultValue]]、[[DefineOwnProperty]]除了这12个之外,不同的对象可能还会有自己的内部属性。 下面简单介绍一种内部属...
name:'小李'}//2、添加属性user.age = 28//3、Object.defineProperty()//第一个参数是对象,第二个参数是属性,第三个参数是一个属性描述符(对象)Object.defineProperty(user, 'height', { enumerable:true,//是否可遍历,设为false,则遍历时不会显示该属性configurable:true,//是否可配置,设为false,则后续继续...
1、Object.getPrototypeOf() Object.getPrototypeOf 方法可以用来从子类上获取父类,判断一个类是否继承了另一个类 Object.getPrototypeOf(foo) ===Foo//true 2、extends 关键字实现继承 classParent{ constructor(lastName='Liu'){this.lastName=lastName; } }classChildextendsParent{ constructor(lastName){super(las...
Namespace: System.Runtime.InteropServices.JavaScript Assembly: System.Runtime.InteropServices.JavaScript.dll Represents a reference to an object in the JavaScript host environment and enables interaction with it as a proxy. C# [System.Runtime.Versioning.SupportedOSPlatform("browser")]publicclassJSObject:...
<li id="bj" class="BJ" name="Beijing" style="color:red">北京市</li> <li>天津市</li> <li>上海市</li> <li>重庆市</li> </ul> <p>你喜欢那个游戏</p> <ul id="game"> <li id="hsjj">红色警戒</li> <li>天龙八部</li> ...
Namespace: Microsoft.JScript Assembly: Microsoft.JScript.dll Represents an object in JScript. This class belongs to the objects and functions category. This API supports the product infrastructure and is not intended to be used directly from your code....
constname ="exampleobject.txt";// 设置中断点。letabortCheckpoint;// 获取DOM。constsubmit =document.getElementById("submit");constabort =document.getElementById("abort");// 监听上传按钮,单击“上传”后开始分片上传。submit.addEventListener("click",async() => {try{constres =awaitclient.multipart...
<divclass="container"><divclass="title_container"><imagesrc="{{ picName }}"@click="routerEvent"class="music-img"></image><divclass="songData"><textclass="songName">{{ songName }}</text><textclass="singer">{{ singer }}</text></div></div><listclass="lyric_list"><list-itemclas...
// GET /style.css etcapp.use(express.static(path.join(__dirname,'public'))) 在/static路径下挂载中间件来提供静态资源托管服务,只当请求是以/static为前缀的时候 代码语言:javascript 代码运行次数:0 运行 AI代码解释 // GET /static/style.css etc.app.use('/static',express.static(path.join(__dir...