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Web design tutorial

JS simple way to delete array elements and clear array (must-read)

1. Clear the array var ary = [1,2,3,4]; ary.splice(0,ary.length);//Clear the array console.log(ary); // Output [], empty the array, that is, 2. Delete the array element var ary = [1,2,3,

2025-07-22
Extjs4.0 How to achieve three-level linkage in ComboBox

Many netizens are asking how to implement Extjs4.0 ComboBox. Fortunately, I used 3.x to implement a three-level linkage, and now I use Extjs4.0 to achieve the same linkage effect. One thing to note is that the model:'local' in 3.x is used with que

2025-07-22
Support for BootStrap intelligent form practical series (eleven) cascading pull-down

What is Bootstrap? Bootstrap is a front-end framework for the rapid development of web applications and websites. Bootstrap is based on HTML, CSS, and JAVASCRIPT. History Bootstrap is by Twitter's Mark Ott

2025-07-22
Detailed explanation of AngularJS module and simple examples

The AngularJS module module defines an application. A module is a container for different parts of an application. A module is a container for the application controller. The controller usually belongs to a module. Create modules You can create modules th

2025-07-22
Different script writing methods on the day of the week (recommended)

In the front-end field, many times, a simple function can have many different implementation methods. Today, we will take the different script implementation methods of the week as an example, hoping to inspire more ideas for children. 1. Use if statement

2025-07-22
Detailed explanation of associative arrays and ordinary arrays in js

var privateArr = []; console.log

2025-07-22
Guide to using GridPanel Components in Ext JS Framework for JavaScript

1 The simplest Grid Panel Grid Panel is one of the core parts of ExtJS, through which data can be displayed, sorted, grouped and edited. Model and Store are the core of Grid Panel processing data, and each Grid Panel must set Mode

2025-07-22
Image carousel effect display example code based on BootStrap

First, I will show you the bootstrap picture carousel. The effect is as follows. If you feel the effect is pretty good, please continue reading and refer to the implementation code. I won’t say much nonsense, I will just post the code to you. The specific

2025-07-22
Simple examples of js operation database implementation registration and login

Since the emergence of node-js, not only Java, PHP and other backend languages can operate databases and add, delete, modify and check content. JavaScript simple language also has this skill. In addition, under node, js has strong operability and code rea

2025-07-22
Simple example of JavaScript implementing a lottery program

Yesterday, when I was holding an annual meeting, I saw a joke about the lottery draw of Vipshop, but the prizes were won by the department that wrote the lottery procedures, and the CTO reviewed the code on site. I briefly thought about the implementation

2025-07-22
Comprehensive analysis of how to use transition and affix in Bootstrap

1. Transition (filtering) is a basic supported component and is referenced multiple times by other components. Implement the ability to support transition according to the browser, and then bind the end event of the animation; first: create an Element; th

2025-07-22
Implementation method of synchronous functions of different js

Functions that achieve synchronization with different functions simulate funcList is the queue of function execution functions, where flag=true in the callback function is the synchronous marker quantity <script>var flag = false;function funcTest(t,func){

2025-07-22
Tutorial for getting started with ejs, the web template engine of Node.js

There are many options for Node open source templates, but it is recommended that elderly people like me use EJS. It is natural to use EJS with experience in Classic ASP/PHP/JSP. That is to say, you can arrange JavaScript code in the <%...%> block a

2025-07-22
Implementing combobox to support pinyin retrieval function on IE8

Recently I encountered a js problem in ie8. I need to implement (ie8) to use pinyin or first letters to retrieve the content in select. The original combobox could only support Chinese character input and search, and now I need to improve it. Now I will r

2025-07-22
Deeply understand the use of arguments of JS functions

The parameters of the JS function can be obtained in the function using the arguments object. There are two ways to call parameters: 1. Use of expected parameters. 2. Use of actual passed parameters. Application example: function Test(a, b){var i, s = &qu

2025-07-22

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