function getThis()( console.log(this) } getThis(); //returns Window {postMessage: ƒ, blur: ƒ, focus: ƒ, close: ƒ, frames: Window, ...} Listing 5-2Get the Current Context of a Function in the Global Scope 代码中调用函数的地方称为执行上下文。执行上下文决定了this 的值。注...
time为间隔执⾏的时间,单位为毫秒,每过time时间就执⾏⼀次fun⾥⾯的代码 代码语言:javascript 代码运行次数:0 AI代码解释 <!DOCTYPEhtml>#tim{width:100px;height:100px;background:red;margin:0auto;}// 间隔性性定时器 setInterval 每间隔三秒会执行一次setInterval(function(){alert("我是延时3秒执...
10、获取小程序链接的地址栏参数 GetWxMiniProgramUrlParam 代码语言:javascript 代码运行次数:0 运行 AI代码解释 // 判断是否为IE8 var DEFAULT_VERSION = 8.0; var ua = navigator.userAgent.toLowerCase(); var isIE = ua.indexOf("msie") > -1; var safariVersion; if (isIE) { safariVersion = ua....
getElementById("tp"); const row = tp.content; const [c1,c2,c3,c4] = row.querySelectorAll(".col"); const tbody = document.querySelector('.tbody'); for(const {id,name,sex,age} of array) { c1.textContent = id; c2.textContent = name; c3.textContent = sex; c4.textContent = ...
current; obj.timer = setInterval(function () { var lock = true; for (var prop in json) { if (prop == 'opacity') { current = parseFloat(window.getComputedStyle(obj, null)[prop]) * 100; } else { current = parseInt(window.getComputedStyle(obj, null)[prop]); ...
Javascript // 我们DOM 元素的引用 let controlCheckbox = document.getElementById("mainCheckbox"), addBtn = document.getElementById("addNewObserver" ), container = document.getElementById("observersContainer" ); // 具体的被观察者 //Subject 类扩展controlCheckbox 类 extend(new Subject(), control...
describe('api', function() { describe('GET /api/users', function() { it('respond with an array of users', function() { // ... }); }); }); describe('app', function() { describe('GET /users', function() { it('respond with an array of users', function() { // ... }...
1、封装通过id获取元素的方法:(js方法) function getId(id){ return document.getElementById(id); } 1. 2. 3. 2、获取当前日期(输出格式:年-月-日 星期 时:分:秒);(js方法) function getTimes(date){ var year = date.getFullYear();
Then add the data-target attribute with the ID or class of the parent element of any Bootstrap .nav component. body { position: relative; } ... ... ... 通过JavaScript 调用 在CSS 中添加 position: relative; 之后,通过 JavaScript 代码启动滚动监听插件: $('body').scrollspy({ targe...
HUAWEI ID Sign-In via ID Token (OpenID Connect) HUAWEI ID Sign-In via Authorization Code (OAuth 2.0) Quick HUAWEI ID Sign-In to Apps That Apply for Only the OpenID or UnionID Function-based Development Signing In with an ID Silently Signing In with an ID Signing Out of an ...