var keyword

C #3.0 in my eyes   Written by Allen Lee   Origin Every time a new technology is released, we can always feel two completely different emotions: fear and resistance, and with such emotions, "C #2.0 is quite useful, why is it so complicated in C #3.0?

Closure is a difficult and characteristic of JavaScript language. Many advanced applications rely on closures for implementation. I. Scope of Variables To understand closures, you must first understand the special variable scopes of

Differences between Firefox and IE on JavaScript and CSS  Keywords: javascript; CSS; Firefox; ie; Difference1. Document. formname. Item ("itemname ")Note: in IE, you can use document. formname. Item ("itemname") or document. formname.

All variables in JavaScript are of loose type. Different from other object-oriented speech, variable declarations are of strong type. Therefore, JavaScript variable declarations do not include types. Declare a variable by using the VaR keyword or

To write JavaScript code that is compatible with mainstream browsers, you need to pay attention to their differences. The general Dom that IE and FF comprehensively consider is below! 1.doc ument. formname. Item ("itemname ") Description: You can

Js variable details, js Variables1. Variable Declaration1) js variables include local variables and global variables. It is best to use var Declaration for both local variables and global variables.2) if a variable is not declared using var, js will

Understanding of javascript closuresClosure is a difficult but important point of knowledge in Javascript. 1. First, we need to know that the variable scope chain has two scopes: global variables and local variables. The variables in no function are

1. document. formName. item ("itemName ") Note: in IE, you can use document. formName. item ("itemName") or document. formName. elements ["elementName"]; In Firefox, only document. formName. elements ["elementName"] can be used. Solution: Use

1. It is found that the id attribute of the input label in IE is the same as the name attribute by default. Firefox must explicitly write the id attribute name; otherwise, the id attribute cannot be used. For example, The following code in IE can

I. Scope of Variables To understand closures, you must first understand the special variable scopes of Javascript. Variables have two scopes: global variables and local variables. The special feature of Javascript is that the function can directly

1.doc ument. formName. item ("itemName ")Description: You can use document. formName. item ("itemName") or document. formName. elements ["elementName"]; In Firefox, only document. formName. elements ["elementName"].Solution: Use document. formName.

All variables in javascript are of loose type. Different from other object-oriented speech, variable declarations are of strong type. Therefore, Javascript variable declarations do not include types. Declare a variable by using the var keyword or

1. compatible with firefox's outerHTML and FF, there is no outerHtml method.Copy codeThe Code is as follows:If (window. HTMLElement ){HTMLElement. prototype. _ defineSetter _ ("outerHTML", function (sHTML ){Var r = this. ownerDocument. createRange ()

This chapter is a brief statement In the previous chapter we talked about the differences between object-oriented thinking C # and Java. The author starts with the three main characteristics of object-oriented. And this chapter mainly

1. Getting problems with HTML objectsFireFox:document.getElementById ("Idname");Ie:document.idname or document.getElementById ("Idname").Solution: Uniform Use of document.getElementById ("Idname");2. Const ISSUESNote: Under Firefox, constants can be

I don't even remember when I saw the JScript syntax tutorial. It means it is completely legal to ignore the VaR keyword when declaring a variable. At that time, because JavaScript was thought to be the loosely-typed language, VAR may be a decoration.

The scope of a variable is nothing more than two kinds: global variables and local variables.The special point of the JavaScript language is that the global variables can be read directly inside the function.JS Codevar n=999;Function F1 () {alert (n)

The scope of a variableTo understand closures, you must first understand the special variable scope of JavaScript.The scope of a variable is nothing more than two kinds: global variables and local variables.The special point of the JavaScript

When it comes to closures , this is a feature that JS has to mention, and many traditional languages do not have such features, such as Java C and so on. Before reading, always understand what is the closure of the package! Here's a sketch of a

Reproduced in this article:The scope of a variableTo understand closures, you must first understand the special variable scope of JavaScript.The scope of a variable is nothing more than two kinds: global variables and local variables.The special