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Web design tutorial

Fileinput in Bootstrap Multiple image upload and editing functions

If you don’t know the configuration of Bootstrap-fileinput, you can check the official website: http://plugins.krajee.com/file-input. Logical description: First get the data display from the background, and then edit it. Without further ado, just upload c

2025-08-14
Node.js cooperates with node-http-proxy to solve the problem of cross-domain development of ajax in local development

Scenario: The front and back ends are separated, and there will be cross-domain problems in the local front-end development and calling interface. There are generally three solutions: 1. The back-end interface is packaged to run locally (disadvantages: ev

2025-08-14
Use vertical-align to implement input and img alignment

The img tag is always one header higher than input. It is feasible to use align=absmiddle, but it does not meet the HTML standard. I accidentally found that vertical-align:middle is OK. Friends who have similar situations can refer to the input and img in

2025-08-14
Detailed explanation of Arrow Functions in Javascript ES6

ES6 can use "arrow" (=>) to define functions. Note that they are functions, and do not use this method to define classes (constructors). 1. Syntax 1. A simple function with one parameter var single = a => asingle('hello, world') //

2025-08-14
Example of JS's canvas tag based on HTML5 to achieve dazzling hues ball animation effect

This article describes the effect of JS based on HTML5 canvas tags to achieve hue ball effect. I will share it with you for your reference. The specific details are as follows: The screenshot of the operation effect is as follows: The specific code is as

2025-08-14
Cool! Different styles of page layout slide special effects js implementation

This is a special effect of different styles of page layout slideshows with very cool effects. In this special effect, the slideshow is switched through the front and back navigation buttons, and the pictures in each slide have different layout effects. T

2025-08-14
Deeply analyze the semantics of HTML and its related front-end frameworks

This article mainly introduces the in-depth analysis of HTML's semantics and the front-end framework related to it. Simple HTML is also very knowledgeable! Friends who need it can refer to the following research on semantic semantics. The relationship

2025-08-14
JS simple random number generation method

This article describes the simple random number generation method of JS. Share it for your reference, as follows:<!doctype html><html><head><meta charset="utf-8"><title> Random number</title></head><body>

2025-08-14
JavaScript scope chain example sharing

JavaScript only has function scope; each function has a scope chain that directly reaches the window object. The search of variables is searched from the inside to the outside layer, and it will stop when it is found. At the same time, it can not only fin

2025-08-14
Detailed explanation of prototype attributes in Javascript (recommended)

In a typical object-oriented language, such as java, there is the concept of class. Class is the template of an object and an object is an instance of a class. However, in the Javascript language system, there is no concept of class. Javascript is not bas

2025-08-14
Using HTML5 Canvas to create a water ripple effect, click on the image and trigger it

This article will introduce the use of JavaScript to achieve water ripple effect. The water wave effect is based on the picture. Clicking on the image will trigger any location. The source code is attached. Friends who like it can refer to it. Today, we w

2025-08-14
JS defines the method of submitting web form (submit)

This article describes the method of JS defining web form submission (submit). Share it for your reference. The specific code is as follows: This code means that when submitting the web form, it is not submitted to the specified page, but executes a speci

2025-08-14
AngularJS method to implement elastic box layout

Recently I am writing a simple layout framework, but the functions are actually similar. But the goal is to use as simple as possible code to implement some essential functions. It is used in some occasions where loading speed is required. CSS part.flex-r

2025-08-14
The pitfalls that need to be paid attention to when learning scope in Angular

Angular scope In web applications built with angular, the concept of scope (scope) runs through it. Many instructions in the angular view will create a scope, such as ng-app, ng-controller, etc. This scope is us

2025-08-14
Learn Javascript closure (Closure) knowledge

1. Scope of variables. To understand closures, you must first understand Javascript's special variable scope. There are only two types of scopes of variables: global variables and local variables. The special feature of Javascript language is that glo

2025-08-13

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