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Detailed explanation of JavaScript learning summary: Despised eval functions and with statement examples

The previous words eval and with are often disliked, as if their existence is a mistake. In CSS, tables are disliked and only use tables to display data on web pages, rather than layout, may be denied as irregular and overcorrect. So what is the situation

2025-08-20
Solve the problem of executing multiple functions when clicking on the html button to switch to bind different functions

Deleting posts and locking posts requires filling in the reason for rejection, sharing a window, and buttons, which bind different events: title = 'Delete posts (blocking, not displaying)'; Copy the code code as follows: $('#btn_ok', '

2025-08-20
Simple implementation method for countdown to send SMS by js

As shown below:

2025-08-20
JavaScript IE version detection super simple method

In recent years, with the upgrade of operating systems and the popularization of various new technologies, abandoning low-version IE has become a trend. This is good news for front-end personnel. You don’t have to spend too much time to make low-version c

2025-08-20
A weird shortest IE version judges JS script

Use conditional comment to determine the version of IE. Well, someone proposed it early, but didn't look at the code carefully. I happened to see it when I was watching CSS3 PIE yesterday, and I thought it was unreliable. I also mentioned it today by

2025-08-20
Sea.JS knowledge summary

SeaJS is a JavaScript module loading framework that follows the CommonJS specification. It is a modern module loading tool for web development, providing a simple and ultimate modular experience. Sea.js is jointly maintained by Alibaba, Tencent and other

2025-08-20
Detailed explanation of the first introductory tutorial of Vuejs (one-way binding, two-way binding, list rendering, response functions)

What are components? Component is 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 s

2025-08-20
Usage of textarea focus to achieve the effect of obtaining focus clearing and losing focus prompts

Reproduction diagram: Specific implementation: 1. The textarea tag content copy code is as follows: <span style="font-size:14px;"><tr><td align="right" valign="top">Note:</td></tr></span>

2025-08-20
WebApi+Bootstrap+KnockoutJs creates a single-page program

1. Preface In the previous topic, I quickly introduced the knowledge points related to KnockoutJs and wrote some simple examples. I hope that through these examples, you can quickly get started with KnockoutJs. In order to let everyone clearly see the app

2025-08-20
JS code to detect whether the network is connected in specific function

Copy the code code as follows: var EventUtil = { addHandler: function (element, type, handler) { if (element.addEventListener) { element.addE

2025-08-20
Analysis of the reason why IE9 does not support some attributes in HTML5

This article mainly introduces the reasons why IE9 does not support some attributes in HTML5, which is helpful for understanding the applications of IE9 and HTML5. Friends who need it can refer to the following article to analyze the reasons why IE9 does

2025-08-20
Let’s talk about asynchronous in Javascript and how to be asynchronous

Why do you need asynchronous? Why? Let's see a piece of code. Question 1: for(var i=0;i<100000;i++){}alert('hello world!!!'); This code means to execute alert 100 times before executing alert. The problem this brings is that the subsequent

2025-08-20
Example of simple implementation of floating window effect by JS

This article describes the simple implementation of floating window effects by JS. I will share it with you for your reference, as follows: HTML part:

2025-08-20
Use viewport to define screen css in meta tags

The viewport in the meta tag can set the screen's css style, including width, height, initial scaling, etc.

2025-08-20
node-http-proxy modify response result instance code

Recently, when using node-http-proxy in a project, I encountered the need to modify the proxy server response result. This library has provided a solution to modify the response format to html: Harmon, and the return format in the project is uniformly jso

2025-08-20

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