JavaScript cross-domain method rollup _javascript Tips

Web development often requires cross-domain problems, and the root cause of cross-domain problems is the same homology strategy in browser security, for example, for http://www.a.com/1.html: The 1.http://www.a.com/2.html are

JavaScript detection Browser zoom State to implement code _JAVASCRIPT skills

Scaling here refers not to the size of the browser, but to the percentage of the content of the browser's Web page (press CTRL and + key or-the zoom of the number key).There is a way to detect this scaling, QQ space all through flash to detect

Simple method to determine whether a JavaScript object is null or the attribute is empty _javascript tips

First of all, the difference between null and undefined: Performs typeof on declared but uninitialized and undeclared variables, and returns "undefined". Null represents an empty object pointer, and the typeof operation returns "Object". It is

A solution that produces null characters when JavaScript splits a string _javascript tips

Problem description There are some empty string "" when splitting a string using the JavaScript split method, especially when using regular expressions as delimiters. Related issues A JavaScript regular expression produces an empty string group

Methods for creating custom objects in Javascript summary _javascript tips

There are a number of ways to create objects in Javascript. Object constructor/literal number : Aside from the design pattern, the most basic method is to call the object constructor to create one and then add the properties to the object.

_javascript Techniques for single case pattern instances of JavaScript design patterns

Peter Seibel, author of Practical Common Lisp, once said that if you need a pattern, there must be something wrong. The problem he said is that because of the innate defects of language, it is necessary to seek and summarize a common solution.

Dwell on javascript memory leaks _javascript tips

1, what is closure, and closures involved in the scope of the chain here is not said. 2. JavaScript garbage collection mechanism JavaScript does not need to manually free memory, it uses an automatic garbage collection mechanism (garbage

_javascript techniques for the optimal scheme of non-blocking loading performance in JavaScript

The performance of JavaScript in the browser can be said to be the most important usability problem faced by the front-end developers. One of the Yslow23 rules for Yahoo is to put JS on the bottom. The reason is that, in fact, most browsers use a

JavaScript gets the current date's lunar date code _javascript tips

JavaScript code /* Set the Lunar date */var calendardata=new Array (100); var madd=new Array (12); var numstring= "1,234,567,890"; var monstring= "is 234,567,890 winter wax"; var cyear,cmonth,cday,thedate; The lunar calendar can only be 2

JavaScript abstract factory pattern detailing _javascript Tips

Abstract Factory mode Description 1. The problem of the factory method pattern: In the factory method pattern, the creation class all needs to go through the factory class, if wants to extend the program, must modify the factory class, this

JavaScript Strict mode disables the With statement reason _javascript tips

Read a lot of JavaScript strict mode, which has said "Disable with statement", previously seen this is riding on the flowers, around the area, because usually rarely used this statement, the ban can not help to their relationship is not very big.

Simple examples of publishing/subscription patterns in JavaScript _javascript tips

The last time the Observer model was studied, many articles said it was also called subscribe/publish (Publish/Subscribe mode). There are some differences between the two patterns in the JavaScript design pattern book. The book reads as follows:

JavaScript copy-paste and clipboarddata using _javascript tips

Window.clipboarddata can realize copy and paste operation, its GetData method can realize data reading, SetData method can realize data setting.

JavaScript implementation copy and paste operation example _javascript skill

This article illustrates the way that JavaScript implements copy and paste operations. Share to everyone for your reference. The implementation methods are as follows: Copy Code code as follows: I hope this article will help

_javascript techniques for using instances of UBound functions in JavaScript

The UBound function method in JavaScript is to return the maximum index value used in the specified dimension of VBArray. How to use: Copy Code code as follows: Safearray.ubound (Dimension) Where SafeArray is a required

Technical _javascript tips on writing performance-efficient JavaScript events

How to make an efficient Web front-end program is every time I do front-end development will not consciously consider the problem. A few years ago, Yahoo's top-end engineers made a book about improving the performance of the Web front-end,

A JavaScript instance that detects form data _javascript tips

A JavaScript instance that detects form data, very simple, very practical, interested friends can look at a JavaScript instance per day-detect form data *first field: Second field: &L T;/div> third Field (numeric):

Open source JavaScript Project Kissy Introduction to _javascript Tips

Kissy Introduction What is Kissy? Kissy is an Open-source JavaScript project whose main body is a front-end UI development framework, the Kissyui. The kissy described in this paper refers only to the language and frame design thought in the

JavaScript makes tank Wars full record (2) _javascript tips

2. Perfect map Our map has spaces, walls, steel, grass, water, headquarters and other obstacles. We can design all of these as objects. 2.1 Creating an Obstacle object group Object groups hold objects on various maps, and we determine whether an

Public, private, privileged, and static member usage analysis _javascript techniques in JavaScript

The examples in this article describe the public, private, privileged, and static member usages in JavaScript. Share to everyone for your reference. The specific analysis is as follows: The following content is in the "Javascript.dom Advanced

Total Pages: 5378 1 .... 1443 1444 1445 1446 1447 .... 5378 Go to: GO

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.