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JavaScript skills to determine if the page is loaded before executing predetermined functions

The execution of the JavaScript scripting language needs to be triggered. The general approach is to write several functions directly on the web page. Some of them are processed by the browser when the code is loaded, or use codes similar to the following

2025-08-27
Simple implementation method of using com components in javascript

First create a COM component, insert a dual-interface Itest, and implement the following three methods on this interface: STDMETHODIMPCtest::test(void)//No input and output parameters {//TODO: Add the implementation code here MessageBox(NULL,L"test&q

2025-08-27
Introduction to the autofocus attribute in HTML5

Comment: HTML5 brings us a lot of magical things. In the past, tasks that need to be completed with JavaScript and Flash, such as form verification, INPUT placeholders, client rename download files and audio/video, can be completed using basic HTML.

2025-08-27
Summary of the method of creating random strings containing numbers and letters in javascript

The first type: //code from http://caibaojian.com/js-random-string.htmlfunction makeid(){ var text = ""; var possible = "ABCDEFGHI

2025-08-27
How to compatible with old browsers in HTML5

Comment: HTML5 brings us many very simple but very powerful HTML attributes: placeholder, download, and autofocus, and another newly emerging attribute is the hidden attribute. When a web page element has hidden attribute, its performance is similar to CS

2025-08-27
JavaScript Array object extension indexOf() method

Background: In the standard method of Array object in JavaScript, there is no indexOf() method, which can be extended by the following code. Copy the code code as follows: if (!Array.prototype.indexOf) { Array.prototype.indexOf

2025-08-27
Implement the effect of shopping website product magnifying glass based on JavaScript

Almost everyone has experience shopping online. Some websites have a product magnifying glass function. When you move the mouse to the picture, there will be another large picture next to it, which is equivalent to the magnifying glass effect. How can suc

2025-08-27
Summary of implicit type conversion in Javascript

There are six types of data types in JavaScript, namely null, undefined, boolean, string, number, and object. object is a reference type, and the other five are basic types or primitive types. For example, if it is Number() or parseIn

2025-08-27
Related operation knowledge of date functions in JavaScript

The time object is an object that we often use, and it is inseparable from this object whether it is time output, time judgment and other operations. In addition to the time objects in JavaScript, there are also many time objects in VbScript, and they are

2025-08-27
JS implements the Star Scoring Function Example Code (two methods)

1. Method 11. Use pictures 2. Structure and style<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title> Document</title><style> ul { pad

2025-08-27
JavaScript dynamically adds data items to drop-down list

Javascript adds data items to the drop-down list.html Copy the code as follows:<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head>

2025-08-27
Another js clock! transform achieves clock effect

Another clock effect is coming. This implementation does not require canvas, it is drawn by div, ul, and li, which is fun and realistic. Haha~JS is needed to achieve this effect of moving around, but there is not much content in js, so it is not difficult

2025-08-27
JavaScript method to connect all elements in an array through join function

This article describes the method of JavaScript connecting all elements in an array through the join function. Share it for your reference. The specific implementation method is as follows: <script type="text/javascript">var days = ["Sunday","Monday","

2025-08-27
A brief analysis of powerful Vue.js components

What is a component: Components are one of the most powerful features of Vue.js. Components can extend HTML elements and encapsulate reusable code. At a higher level, components are custom elements, and Vue.js' compiler adds special features to it. In

2025-08-27
Detailed explanation of XMLHttpRequest (I) Synchronous request and asynchronous request

XMLHttpRequest makes sending an HTTP request very easy. You just need to simply create an instance of the request object, open a URL, and then send the request. After the transmission is completed, the resultant HTTP status and the returned response conte

2025-08-27

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