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Web design tutorial

Share 10 CSS and JavaScript tools to optimize code

It is a very important process to check and test the code to find any potential errors so that it can be eliminated in time before it is placed on the website. The process of code inspection is also commonly known as linting between web designers and deve

2025-08-30
JS implements the method of returning file size based on the number of file bytes

This article describes the method of JS implementing the return file size based on the number of file bytes. Share it for your reference, the details are as follows: function getFileSize(fileByte) { var fileSizeByte = fileByte; var fileSize

2025-08-30
First time to get into the magical Bootstrap menu and navigation

This article will mainly introduce Bootstrap's menu and navigation. Starting with this article, we will introduce JavaScript-related files, as follows: 

2025-08-30
Implement image magnifying glass effect based on angularjs

The introduction was originally planned to be written in native angularjs, but found that using native angularjs, the width and height of the picture inside cannot be obtained in any case, because the built-in jquery method of angularjs does not have wint

2025-08-30
JS method to obtain and verify the start and end date

This article describes the method of obtaining and verifying the start and end date of JS. Share it for your reference, the details are as follows: function validation(){var startdate=document.getElementById("start_tenancyDate_s

2025-08-30
Problems caused by comparison of 0 and "" in JavaScript

Today I found a very strange Js problem when I was in the company. I didn't notice before that I took out the value of a certain field from the database, and the value of this field happened to be 0. When I judged whether this value is equal to "

2025-08-30
JavaScript realizes advertising pop-up effect

Everyone has seen malicious advertisements in a certain degree, and you close it and come out again! Why, JS tells you HTML<body><h3> The unclosed bullet box is a can’t be killed by Xiaoqiang!</h3><div id="middleBox">

2025-08-30
Provincial and municipal linkage menu implemented by JavaScript two-dimensional array

The code copy is as follows:<!DOCTYPE html><html><head><meta charset="UTF-8"><title> Insert title here</title>

2025-08-30
AngularJS internationalization detailed explanation and sample code

AngularJS supports built-in internationalization of three types of filter currencies, dates and numbers. Only the corresponding JS needs to be included according to the country's region. By default it handles the browser's locale. For example, to

2025-08-30
Click on the picture to enlarge the special effects PhotoSwipe.js plug-in to implement

PhotoSwipe plug-in can realize full screen zoom in on the mobile phone, and double-click on the image to enlarge the image, etc. PhotoSwipe plug-in official website http://www.photoswipe.com/ But one thing is not good, the image can not be closed after be

2025-08-30
Pure css drop-down menu without js

Let’s take another example that someone mentioned today: Pure CSS drop-down menu: The implementation of renderings is very simple, mainly: the use of hover and transition attribute transition. Code:<!DOCTYPE html><html lang="en"><head>

2025-08-30
JS verification method when logging in to HTML page

Develop a registered HTML page to collect user registration information. Including: Name (cannot be empty), Age (must be over 17 years old), Weight (30-150kg), Class (drop-down list), Login password (at least 8 digits long), Confirm password (the same as

2025-08-30
A brief discussion on the use of RegExp objects and brackets for JS regular expressions

The creation of RegExp object: The creation of regular regular expressions can be used for direct quantities, that is, characters enclosed by slash "/". But in an environment where parameter changes are required, the RegExp() constructor is a be

2025-08-30
html video tutorial: hexadecimal detailed explanation

2025-08-30
A brief discussion on JS native Ajax, GET and POST

GET request for ajax for javascript/js:<script type="text/javascript"> /* 创建 XMLHttpRequest 对象 */ var xmlHttp; function GetXmlHttpObje

2025-08-30

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