JavaScript

This article summarizes some methods I have found in JavaScript programming to improve the JavaScript running performance. In fact, these experiences are based on several principles and loops are a very common control structure, most of the things

In my previous article Ext object-oriented development practices, this article briefly describes how to compile an Object-oriented Data Maintenance applet. However, this is based on the client data, that is, once a user refreshes the page, all

There are a total of 25 questions for this exam, each of which is a two-choice and One-choice question with a total score of 100. The javascript code is as follows: The Code is as follows: /*** @ Author georgewing*/Function prepareCheckBox

This article mainly introduces how to use Hook to interpret the source code of the CI framework. the Function Extension Method of PHP files is analyzed. The Hook principle and the related skills of extending the CI framework are analyzed. If you

This article mainly introduces two CI frameworks that support $ _ GET. The example analyzes the implementation skills of get and pathinfo methods, for more information about how to use the CI framework to support $ _ GET, see the following example.

Js loops bind events to li implementation click li to bring up its index value and content recently, we will always encounter this interview question: There are many different answers on the Internet, but I still want to repeat them. As the saying

Closure is a very important threshold for mastering Javascript from the human door to the depth. It is a difficult and characteristic of the Javascript language. Many advanced applications rely on closures for implementation. Closure-ubiquitous In

Client technology, such as JavaScript, has many useful features. Because of this, it has become one of the most popular languages in the world. It has many advantages, and instant resolution is one of them. Instant resolution has many advantages,

The character meaning \ is used as a conversion, that is, the characters After & quot ;\& quot; do not follow the original meaning, for example, B matches the character & quot; B & quot ;, when B is preceded by a vertical bar and \ B, it is

"Cookie is a variable stored on the visitor's computer. This cookie is sent every time a computer requests a page through a browser. You can use JavaScript to create and retrieve cookie values ." -W3school What is Cookie? "Cookie is a variable

The first method is relatively cumbersome, and the second method is relatively simple. The first method is as follows: 1. first, the repeated items in the string are merged to obtain the repeated item names and repeated times in the form of objects;

This article mainly introduces how to set up a simple Web server for Nodejs and the relevant information of the instance. It also includes the instance code and implementation. If you need it, you can refer to using Nodejs to set up a simple Web

Introduction to the principle and solution of node. js version management tool n N is a module of node. It can be used to manage various versions of node. It is similar to Python's rbenv and Ruby's rbenv. The author of n is the famous corner stone.

Nodejs advanced: Overview of File Upload instances based on express + multer Image uploading is a frequently used function in web development. The node community also provides comprehensive support in this regard. Common open-source components

Methods for filtering large amounts of data in Javascript The main requirement is that the front-end obtains a large amount of data from the backend through Ajax, and needs to be filtered according to some conditions. The first filtering method is

This article describes some error-prone knowledge points that I have collected and sorted out during the JavaScript process. They will be divided into variable scopes, type comparisons, this points to, function parameters, the six aspects of closure

Understanding of js-arguments: Construct an Array of Arraylike classes by yourself. Key points: 1. The element is an Array index 2. You can construct an Array like by yourself with the length attribute. Key points of the class array: 1. The element

When it comes to table sorting, the first thing we should talk about is array sorting, Because array sorting is the basis of table sorting. JavaScript provides the sort () method for Arrays for table sorting. By default, this method will sort the

This article introduces the this keyword in javascript and lists the knowledge about this keyword into a list, which will help us to clarify our ideas and be a good learning method. It is strongly recommended. No matter what knowledge we learn, we

This article mainly introduces the two-way Data Binding Mechanism in AngularJS. Bidirectional binding makes the view displayed in HTML consistent with the data in AngularJS and is one of the important features of Angular, for more information, see