JavaScript

  1 First: 2 String. Prototype. ltrim =   Function () {3Return This. Replace (/^ \ S */,"");4} ; // Remove the left space; 5 String. Prototype. rtrim =   Function () {6Return This. Replace (/\ S * $/,"")

The changed information is as follows: IE8 on Windows Vista (Compatibility View) Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Trident/4.0) IE8 on Windows vistamozilla/4.0 (compatible; MSIE 8.0; windows NT 6.0; Trident/4.0) In addition to

It is inevitable that you will forget your learning knowledge. The key is that you can use Quick methods to recall your learning knowledge and try your best to make it easier. Summary may be an effective way to recall in the future. I read the

Create a regular expression VaR p1 = new Regexp ("ABC", "IgM"); var P2 = Regexp ("ABC", "IgM"); var P3 =/ABC/IgM; // determine whether it is a regular expression object alert (P1 instanceof Regexp); // truealert (P2 instanceof Regexp); //

Basic usage VaR B; B = true; alert (B); // trueb = new Boolean (false); alert (B); // falseb = 2> 1; alert (B ); // trueb = 2 Convert to boolean VaR B; B = Boolean (123); alert (B); // trueb = Boolean ('abc'); alert (B); // trueb =

The following two small problems are encountered by Lou pig in actual project development. I will discuss them with you.1. The number is long. The valid long integer number in C # Is In JavaScript ......Let's take a look at the following lines:Code:

Reference: http://bbs.51js.com/thread-74195-1-1.html Constructor ConstructorCodeIt must be placed at the end of the class definition to ensure that all methods called in the class have been defined.   Private instance Member [variables and

There are countless popular JavaScript libraries, such as jquery, mootools, prototype, dojo, and Yui. These JavaScript libraries are rich in functionality, and their plug-ins are almost competent for any job. However, there is a price. These

ArticleDirectory Overview Jquery extjs dojo MS Ajax comparison Usage Survey Selection factor Because of the many frameworks, I only summarize the several common frameworks I have come into contact with in my actual work.

The first headache to learn Javascript is ide. Microsoft's script editor is good, but it seems that it cannot be installed independently. Do it yourself. Download the simplest JavaScript testing tool. This tool may be modified at any time (last

(This post is posted on the old blog of the version engineer on)When implementing the "linkage drop-down menu" (after selecting the first drop-down menu, the options of other drop-down menus will be dynamically taken out), if the menu content does

Method 1:In my opinion, the best method is to use regular expressions, which is the core principle.Secondly, this method uses the prototype attribute of JavaScript. In fact, you can use functions without using this attribute, but it is more

Write the onclick event processing button in a webpageCode, Accidentally written as follows:After an error occurs in IE, the following error occurs:The result is still incorrect.At this time, I cannot figure it out. Although I know that the most

Recently readingJavascript + DOM programming art. It seems that there is no absorption. Dom search method:Getelementbyid () // returns the ID element.Getelementsbytagname () // return the TAG set by Tag NameGetattribute () // get an attribute

Function parseurl (URL) {var A = document. createelement ('A');. href = URL; return {Source: URL, Protocol:. protocol. replace (':', ''), host:. hostname, Port:. port, query:. search, Params: (function () {var RET ={}, SEG =. search. replace (/^ \? /

Document directory Conclusion (In conclusion) Named function expression) The global scope) Function call (calling a function) Call a method) Call the constructor) Common pitfalls) Assigning Methods) Javascript garden-original

Document directory 1. embedded into HTML Ii. execution sequence of JavaScript on the page 3. How to change the execution sequence of JavaScript on the page In the project, because the script is registered multiple times with the client

24: 00 game introduction:Four integers between 1 and 9 are given. Each digit can only be used once. Any +-*/() is used to construct an expression, and the final result is 24, this is a common 24-point game. The number range of the Code provided in

It is always considered that the parameters of JavaScript Functions are common values and objects. Today, I want to upload an object to the function and generate it again, so that I still have some misunderstandings. First look at the coding code of

In this chapter, I will give an overview of important events, including compatibility issues with some popular browsers.The events proposed here, when they happen on a fixed HTML element, their names can be recognized by most browsers. That is to