JavaScript

I recently wrote an online editor for UBB. Since the pop-up window is not used Code At the end of textarea, I could not insert the cursor before, so I went online and went crazy to find information. I finally found out how to get the position in

In the browser, JavaScript Execution and UI update occur in the same process (Browser UI thread. The work of the UI thread is based on a simple queue system. tasks are saved to the queue until they are extracted and executed when the process is idle.

ArticleDirectory SetTimeout setinterval 14.1 use of setTimeout and setinterval Javascript setTimeout setinterval SetTimeout setinterval The basic structure of the Internet is based on a series of static states, which are

ArticleDirectory Last two good things If you need to solve some technical problems encountered during development, you may find some related JavaScript class libraries or jquery plug-ins for implementation. This practical class

This article lists various JavaScript objects and arrays, including a brief description of each of the above objects or arrays, as well as the relevant attribute methods, and event processing. Program Also, the parent Object User indicating the

Javascript itself does not support object-oriented features. It does not have an access control operator and does not define the class keyword. It does not support inherited extend or colons, nor does it support virtual functions, however,

  Http://www.javascript-source.com/ Before Obfuscation Copy Save // Detect which browser is used VaR Detect = navigator. useragent. tolowercase (); VaR OS, browser, version, total, thestring; If (Checkit ( 'Konqueror' ) {Browser =

User. xml: XML version = "1.0" encoding = "gb2312" ?> User > Name > Love flying Name > Password > 123 Name > Friendnum > 4 Friendnum > User > Ex35.htm: (main part)

Web Remote Process calling (webrpc) is a recent hot topic for calling remote methods without refreshing new pages. In some cases, he even becomes an irreplaceable implementation method. The implementation of webrpc has gone through reading from

Original article:Javascript oo without Constructors The object model in Javascript is not widely known. I wrote an article aboutThey. Javascript is the only language widely used to inherit from prototype. However, I think another reason is

Original (Wall): http://www.2ality.com/2012/06/dense-arrays.html   In general, arrays in JavaScript are sparse, that is, there can be gaps between elements in the array, because an array is actually a key-value ing. this article explains

It is difficult to copy a mode window in read-only mode. You cannot select text or copy, edit, or right-click the browser menu. This article provides a solution to this problem:Use JavaScript scripts, select the control text, and then use Ctrl + C

Main content: Differences Code demo differences Suggestions   1. Differences In normal coding, the [return false;] statement is often used in JavaScript to prevent the event from being passed up. In fact, the [return false;] statement contains

Functions are the basis for modular program design. To compile complex Ajax applications, you must have a deeper understanding of functions. Functions in JavaScript are different from other languages. Each function is maintained and run as an object.

Document directory IE Problems Add Form Project Remove form items In this chapter, I will handle a simple W3C Dom script. He will help us look at interaction design from a new perspective.  Idea Suppose you have an online CD rating tool. You

Document directory No brackets This In this chapter, I will explain the best way to register events for elements, that is, to ensure that a specific event occurs on a specific HTML element and can run a specific script. Registering events in

Let's explain why we need to discuss this issue. Nowadays, many mobile apps may embed a web page directly. Benefits: one is convenient feature updates and easy maintenance. You only need to maintain the page of the server without updating the client.

1.Convert using a Boolean object Copy codeThe Code is as follows: var num123 = 123, str = 'abc', o = {name: 'test'}, num0 = 0; num123 = Boolean (num123 ); // true num0 = Boolean (num0); // false str = Boolean (str); // true o = Boolean (o); // true

The core of JavaScript is ECMAScript. Similar to other languages, the strings of ECMAScript are unchangeable, that is, their values cannot be changed. Consider the following code: Copy codeThe Code is as follows: var str = "hello "; Str + = "world";

Special effects of graffiti canvas implemented by js + html5 canvas, adjustable paint brush color | width | eraser, which can save the graffiti effect as image encoding. It is very suitable for learning the canvas of html5, you must support html5