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Detailed explanation of six ways to define classes by JS

In front-end development, it is often necessary to define JS classes. So in JavaScript, there are several ways to define classes, and what are the differences? This article explains the following six ways of defining JS classes (case description): 1. Fact

2025-07-14
Summary of basic knowledge of Vue.js

Introduction vue.js is a library used to build web application interface technology. Vue.js focuses on the ViewModel layer of the MVVM mode, which connects view and data binding models in two ways. The actual DOM operation and output format are abstracted

2025-07-14
How to judge the mobile browser operating system and WeChat browser by js

Today I will introduce to you how to use js to judge mobile client platform and system platform: <script type="text/javascript">//手机端判断各个平台浏览器及操作系统平台function checkPlatform(){if(/android/

2025-07-14
Javascript Basics---Ajax must-read

Ajax is a key tool in modern web application development. It allows you to send and receive data asynchronously to the server and then parse it in Javascript. Ajax is Asynchronous JavaScript and XML (Asynchronous JavaScript and XML

2025-07-14
Great js tab switching effect

This article shares the specific code for JS to implement a simple tab switching effect for your reference. The specific content is as follows:<!doctype html><html lang="en"><head><meta charset="UTF-8">

2025-07-14
BootStrap Progressbar Example code for implementing progress bar uploads for large files

1. First, implement large files upload. If it is a few megabytes or dozens of megabytes, use the basic upload method, but if it is a large file upload, it is best to use shard upload. Here I mainly use the client to read the sharded data to the server seg

2025-07-14
A brief analysis of function declarations and function expressions - the declaration of function declarations is in advance

The class party two days ago, except for eating, drinking, having fun and sleeping nonsense, it was so joyful. It was really better to have fun alone than to have fun. PS: If you graduate or are about to graduate, you can get together if you have time. Af

2025-07-14
Detailed explanation of the inheritance features based on prototype prototype in JavaScript

Inheritance in JavaScript is quite weird. It cannot implement interface inheritance and can only rely on prototype inheritance. A prototype chain prototype is an object. The instance created through the constructor will have a pointer to the prototype to

2025-07-14
Understand javascript object inheritance

Let’s first study the question in depth. What is javascript object inheritance? For example, we have a constructor of an "animal" object. function animal() { this.type = 'animal'; } There is also a constructor for the "cat" obj

2025-07-14
BootstrapTable and KnockoutJS combine to achieve the function of adding, deleting, modifying and checking [1]

Bootstrap is a front-end framework, a good thing for freeing web developers. It shows that the UI is very high-end, atmospheric and high-end. In theory, you don’t need to write a line of css. Just add the appropriate attributes to the tag. KnockoutJS is a

2025-07-14
Perfectly implement eight types of js focus carousels (Part 1)

This article is divided into the previous and next articles. I share eight classic effects of js focus carousel for your reference. The specific content is as follows:<div id="box"><ul id="ul"><li style='display:block;'>

2025-07-14
JavaScript function execution process

1. Each JavaScript function is an instance of a Function object. It has an internal property [[Scope]] that is only accessible to the JavaScript engine. This [[Scope]] stores a scoped collection, which is called a "scope chain", and the collecti

2025-07-14
JavaScript code performance optimization summary

Below are some tips I have summarized for reference only. The following code can be basically seen in the source code of jQuery. If there is anything wrong, please point it out. Try to use the source method javaScript is an interpreted language, which is

2025-07-14
JS general method to prevent browser default behavior triggering (recommended)

js general method to block browser default behavior trigger (recommended) // general method to block browser default behavior trigger function stopDefault(e){// Prevent browser default behavior (W3C) if(e && e.preventDefault){e.preventDefau

2025-07-14
A brief analysis of the solution to the variable changes caused by javascript asynchronous execution of functions

A brief analysis of the solution idea of variable changes caused by javascript asynchronous execution of functions for(var i=0;i<3;i++){ setTimeout(function(){ console.log(i) },0);} console output: 333 This is because the executor

2025-07-14

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