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Introduction to the deletion method of object property in JavaScript

In JavaScript, you can use the delete operator to delete the property in the object: the copy code code is as follows: var t = {a:42, b:26};console.log(t);//Object {a=42, b=26}delete ta;co

2025-06-13
JavaScript method to detect whether a browser cookie has been started

This article describes the method of JavaScript to detect whether a browser cookie has been started. Share it for your reference. The specific analysis is as follows: JavaScript detects whether the browser cookie has been started. The code is a bit compli

2025-06-13
Web application development cycle: Tips for shortening web application development

Introduction to web page production articles: Top ten time-saving tips for shortening web application development. In today's development environment, fast is good. Today's popular vocabulary and terminology such as fast application development, a

2025-06-13
How to achieve horizontal blinds effect web page switching animation effect

This article describes the method of switching animation effects of horizontal blinds effect web pages in JS. Share it for your reference. The specific analysis is as follows: This is a very simple but effective web page switching effect. After clicking o

2025-06-13
Introduction to the example usage method of window.returnValue

window.showModalDialog is the method of pop-up mode window returnValue is the property of the html window object in javascript. The purpose is to return the window value. When using window.showModalDialog function to open an IE mode window (model)

2025-06-13
Detailed explanation of the method of defining classes in javascript

There are many ways to define classes in JS: 1. The code copying code in factory is as follows: function Car(){ var ocar = new Object; ocar.color = "blue"; ocar.doors = 4; ocar.showColor

2025-06-13
Associative array problem in JavaScript

The code copy is as follows: var beatles = ["john","Paul","George","Ringo"]; The beatles array above is a typical example of a traditional array: the subscript of each element is a number, and for each element added

2025-06-13
JS implements the principle and sample code for printing preview of local pages

Recently, a friend asked how to print preview on js. Today I will explain it. First, I will understand the printing principle. In fact, printing a partial page is very simple. It is to use the starting mark to print the part you need to print. As for how

2025-06-13
JavaScript implementation 2048 game example

2048 game written in native javascript code. It is recommended to run under Google Chrome. 2048.html Copy the code as follows:<!DOCTYPE><html xmlns="http://www.w3.org/1999/xhtml"><head>

2025-06-13
JS method to implement iframe automatic adaptive height

This article describes the method of implementing the automatic adaptive height of iframe by JS. Share it for your reference. The details are as follows: When writing web pages, you often need to use automatic scaling of the iframe height. If an iframe is

2025-06-13
Detailed introduction to the writing method of HTML embedding WMP compatible with chrome and ie

In fact, there are many corresponding writing methods, and the more common one is object + embed. But during my use, under xp sp3, the embed tag is marked x-mplayer2, but strechToFit is invalid. Very depressed ~ Under win7, embed is marked as x-mpla

2025-06-13
CSS and HTML and front-end technical layer diagram

Javascript and DOM have ambiguous relationships, and I can't figure out the front-end technology layer of CSS and HTML (the picture is a bit extreme, for reference only) Javascript and DOM have ambiguous relationships, and I can't figure out! CSS

2025-06-13
JS implements cool water wave text special effects example

This article example tells the example of JS implementing cool water wave text special effects. Share it for your reference. The specific implementation method is as follows: Copy the code code as follows:<html><head><title> JS implements cool water wave

2025-06-13
Analysis of javascript object-oriented definition member method instance

This article analyzes the javascript object-oriented member method. Share it for your reference. The details are as follows: JavaScript is object-oriented, and the member method is defined as follows: Copy the code code as follows:

2025-06-13
Let the web page turn to other pages after opening a few seconds

Just add the following code to achieve it. The first method: Use Meta usage:<Meta http-equiv=Refresh Content=30>

2025-06-13

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