JavaScript

General && and | | Simpler, no discussion here.Prepare two objects for the discussion below. Copy Code code as follows: var Alice = { Name: "Alice", Tostring:function () { return this.name; } } var Smith = { Name:

The script can be placed inside the head of an HTML page, or it can be placed inside the body. Put the script in the body, when the browser meets Merge ScriptsBecause the script download blocks page rendering, you should reduce

Copy code code as follows: function Setcookie (sname, svalue) { Date = new Date (); var str=sname+ "=" +escape (svalue) + ("; expires=" +date.togmtstring ()) + ";p ath=/"; Str=str.replace ("2010", "2099");

Test the version of the browser: IETester 6, 7 IE 8.0 Firefox 3.5.5 Chrome 4.1.249.1064 (45376) Opera 9.64 Safari 4.0 Let's take a look at the coordinate properties of each major browser and what they mean. In

In the development of everyone will also pay attention to the use of StringBuilder as far as possible without the use of ordinary string concatenation. But perhaps most developers are ignoring the need to pay attention to this efficiency problem in

keyword highlighting cloud-Habitat community is a professional collection of various types of scripting information site, as far as possible to modify the error to create a quality script class learning site, We for everyone game script

Copy Code code as follows: Effect Demo Code: [Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform] Source: Http://www.cnblogs.com/airy

But I always use JavaScript, so I have to understand the concept. In fact, the concept of closure in JavaScript is very simple, that is, the function to use external variables, do not need to pass the reference can be obtained. As an example:

function code Copy Code code as follows: function parseURL (URL) { var a = document.createelement (' a '); A.href = URL; return { Source:url, Protocol:a.protocol.replace (': ', '), Host:a.hostname, Port:a.port,

But I do not know if you have encountered such a situation, the new window is opened through the Open, not window.opener or ShowModalDialog open. In particular, it should be noted that this href point address (page) is not developed by us, for

It's like waiting in line, the person in front is busy doings wherever to go to the toilet suddenly, the person behind is blocked here, so we need to let the person in front die to side, let the person follow up after ... Ajax is the concept, the

Get the encoding of the page, if it is IE browser with document.charset can be obtained, if you need to use Firefox Document.characterset get. Copy Code code as follows: function Getpagecharset () { var charSet = ""; var otype =

This is a very special attribute, and inheritance in JavaScript generally relies on this property implementation. In JavaScript, everything is an object, a string is an object, an array is an object, a variable is an object, and a function is an

The role of the prototype property:Use the prototype property to provide a set of basic functions for the object's class. The operation of the new instance of the object, "inherit", gives the object a prototype. features of the prototype property:

Global variables often cause naming conflicts in JavaScript, and even sometimes rewrite variables are not in the order you imagined, but look at the following example: Copy Code code as follows: var SayHello = function () { Return '

The code is as follows: Copy Code code as follows: function Write (msg) { for (var i = 0; i document.write (Arguments[i] + ' '); } } About ' && ' Test1 = 1 && 2 && 3 && 4; Test2 = ' 0 ' && 2 && 3 && 4; TEST3 = 1 && 2 && 0 && 4;

Key to the implementation of the technology: using the display feature of CSS, the display feature values are: None and block. None is hidden; The block is displayed. Pre-hands-on design: Collapsible areas are divided into two areas: the title bar

This article answers the last mentioned questions about pseudo arrays in the JavaScript Universal loop Traversal method foreach. What is a pseudo array An object with the length property that can be converted to a true array via

We describe in detail: 1 for the Exec method of the expression object, do not join G, return only the first match, no matter how many times the execution is so, if you add G, then the first execution returns the first match, then the second match,

[Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform]