Object Initialization (English Source: ECMAScript-262 Fifth Edition)
(Huang Di for commentary or vacancy)中文版
Object initialization is an expression that describes the initialization process of an object in a direct amount of terms. It is a list of 0
The sort () method is used to sort the elements of an array. Syntax: Arrayobject.sort (sortby), parameter SortBy Optional. Specify the sort order. Must be a function. Note: If the method is invoked without parameters, the elements in the array are
We often use this feature when we read blogs, of course, sometimes also want to put their own web site to join similar sharing function, the major manufacturers have given the corresponding API, click a button can pop-up window into the sharing, we
CheckBox or button to implement the checkbox in the form of all select or reverse, the code is very simple, all the code is as follows:
insert title here Serial number Choose 1 2 3 All
Effect Demo
Q
With the popularity of Web2.0, JavaScript has become a recognized programming language, due to the emergence of a large number of JS open source framework, the use of JavaScript development projects more and more, more and more. At the same time,
Window Properties
description
frames[]
Store Current window An array of all the frame objects in the The number of
length
window frame is equivalent to window.frames.length. The name of the current
With jquery more, forget the original JS is how to write, but also need to consolidate.
Requirements: JSP echo a select Drop-down box. Select the specified value.
The user clicks Modify the Select to make an existing value echo. There are two ways
JavaScript
1.1 Briefly describes the data type of JavaScript.
The data types of JavaScript can be divided into primitive types and object types.
The original type consists of string, number, and Boolean three. Where strings are used with either
JavaScript is not essential in web development. But a slightly more complex approach is not a way of doing things without debugging tools.
JSDT (Javascript Debug Toolkit) is a good Eclipse plug-in tool.
JavaScript debug Toolkit (JSDT) is a free,
Reproduced from: http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/
Just saw a good article (the original link), the JavaScript in the delete operator is very thorough analysis. Here is a brief introduction to the
There are a number of ways to determine whether a JavaScript object exists, but it is possible to distinguish between them only if the details of the implementation of the JavaScript language are clear. Let's take a look at 10 ways to determine
scope of a variable
To understand closures, you must first understand JavaScript's special variable scope.
The scope of a variable is nothing more than two kinds: global and local variables.
The special point of the JavaScript language is that the
javascript: Deep understanding of JS closuresSeptember Maple Forest released in 2012-4-24 10:33 view number: 4375 Comments: 25 post Mode
Closures (closure) are a difficult and unique feature of the JavaScript
JavaScript free variables
In JavaScript, you can use "delete" To manually delete variables, so that GC (garbage collection) to reclaim memory, but not all variables in JS can be deleted.1, the global variable "a" of the Var declaration is still "1"
1.document.write (""); Output statement
The annotation in 2.JS is//
3. The traditional HTML document order is:
Document->html-> (Head,body)
4. The DOM order in a browser window is:
Window-> (navigator,screen,history,location,document)
5. Get the
about This, generally who called The method that this method is pointing to, This is pointing to the object that is currently called (I am the most beautiful), the callback function inside the This will point to (heavy)If there are multiple calls,
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