JavaScript

This article to share is a personal summary of the 10 very common native JavaScript tips, are usually used in the project, here summarized record down, the need for small partners can refer to. 1, the implementation of string length interception ?

The TextRange object is an advanced feature of Dynamic HTML (DHTML) that can be used to implement many text-related tasks, such as searching and selecting text. The text range allows you to selectively select characters, words, and sentences from

  By using JavaScript, you can execute code after a set interval, rather than executing it immediately after the function is called. As we call it the timing event, the following is a detailed explanation of the JavaScript timer event It is easy to

  This article is mainly about the JavaScript function definition of several differences in a detailed summary of the introduction, the need for friends can come to the reference, I hope to help you. Definition of JavaScript function 1: Invoke

The code is as follows: The code is as follows: Url: PHP detects URL address validity The code is as followsThe code is as follows: ;? function Is_url ($str) { return Preg_match ("/^http://[a-za-z0-9]+.[ a-za-z0-9]+[/=?%-_~ ' @[] ':

This paper discusses the difference between the variable declaration in JavaScript and VAR, and the scope of the variable declaration in JS is in function, so we often see that the method of avoiding the global variable pollution is 1 2

[Simple message book] is implemented using the newly added HTML database, and the message book is added Database-implemented WEB message book Var datatable = null; Var db = openDatabase ('mydata', '', 'My database', 102400 ); Function init

A deep understanding of the path module of node. js, node. jspath Node path Module // Reference this module var path = require ("path "); 1. parse the path to obtain the canonicalized path format. // For the window system, the directories are

Vue Virtual Dom implements snabbdom decryption and vuesnabbdom Vue mentioned in the official document that compared with react's rendering performance, it has better performance because it uses snabbdom. The JavaScript overhead is directly related

Front-end questions of chinansoft high-tech WEB and front-end questions of chinansoft high-tech web For a friend's interview question, Baidu once looked at this soft high-tech seems to be a training institution... The answer below is my

JavaScript is a very popular programming language in recent years. It supports both Object-Oriented Programming and functional programming. This article describes the features of JavaScript functional programming. Functional Programming

In JavaScript, there are three main ways to convert any value to a string. this article explains each method and its respective advantages and disadvantages. Note: When I was reading ES5 two days ago, I came up with a question. Today I saw this

Summary of commonly used operators in JavaScript. For more information, see. I. unary Operators1. delete OPERATOR: delete references to previously defined object attributes or methods. For example: Var o = new Object; O. name = "superman "; Alert (o.

Use gb2312 to encode Chinese Characters in js. For example, "I" should be encoded with "% CE % D2 ". Requirement Use gb2312 to encode Chinese Characters in js. For example, "I" should be encoded with "% CE % D2 ". Analysis As you know, encodeURI

The short code in WordPress can generate content through the combination of simple function sets and macro code to facilitate function calling. Let's take a look at the usage of the short code function in WordPress. wordPress has added a short code

This article mainly introduces how to use the Package Manager to install node. js in linux and the specific installation process. It is very detailed and recommended to you. If you need it, refer to it. In the online article, install node in linux.

This article mainly introduces how to judge the browser version and kernel of the browser by js, which can be used for judgment on various browsers and has some reference value, for more information about how to determine the browser version and the

This article will introduce you to the front-end and back-end of the practical node. js website, which is very detailed. If you need it, you can refer to what node. js can do? I still don't know where he is widely used, and I have no chance to

This article focuses on. two key concepts of js: non-blocking IO and event loops are summarized appropriately. If you need them, you can refer to the following concepts to learn and use Node. javascript has been writing a web application and a

This article mainly introduces the socket. io entry instance in node. js, and introduces reverse ajax technologies such as websocket. For more information, see Introduction to websocket and other Reverse ajax Technologies In real-time web