What Is The Point Of Javascript

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall JavaScript in SEO is a very headache problem, On the one hand, we need to use JavaScript in Web page production to achieve brilliant effects, and on the one hand JavaScript will be the search engine crawl analysis caused a bad impact. Google's Official document clearly ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall for a long time, stationmaster chooses to use JavaScript to realize the dynamic behavior of the webpage, the reason that do this is a variety of, such as speed up the response speed of the page, reduce the website traffic, hidden link or embed advertisement etc. 　　Because the early search engine does not have the corresponding processing ability, causes in the index this kind of page often to have the problem, may not be able to collect the valuable resources, may also appear to cheat. The purpose of introducing JavaScript parsing is to solve both ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host Technology Hall We all know that the search engine spiders have no way to handle the content of JavaScript scripts. , the reason is simple, even as a simpler weak-type scripting language, it is still a programming language, with a variety of techniques, only the script interpretation engine to correctly parse ...

This code can often be seen in Javascript scripts: 〈a href= "javascript:changenum (); void (0);" 〉here〈/a〉 but what does void (0) mean here? 　　What's the effect? 　　In JavaScript, Void is an operator that specifies that you want to evaluate an expression but not return a value. void operator usage format is as follows: ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall with the development of Ajax technology, JavaScript, a client-based language, has a youthful glow, with many professional JavaScript gurus appearing. But in SEO, unfortunately, the search engine is not very good to crawl JavaScript code, accurately said it is not ...

This article only picks one example: http://www.aliyun.com/zixun/aggregation/33906.html ">javascript" The This keyword, in simple and simple analysis its meaning in different situations, The reason for this and the method of binding this is provided in JavaScript tools such as Dojo. It can be said that the correct mastery of JavaScript in the This keyword, to calculate ...

In the JS to convert the character to the number of parseint () parsefloat () () Three functions, let us explain their syntax and use methods. About the number function numbers object is the wrapper object for the original numeric value. Create syntax for number object: var mynum=new number (value); var mynum=number (value); parameter parameter value is the Numbe ...

The article uses a sample application to demonstrate DOM methods and properties and how to attach handlers to DOM events. The World Wide Web Consortium (WWW) has defined the Document Object Model (DOM) in different spec groups (DOM 1, Dom 2, and DOM level 3). The DOM represents HTML or XML as a tree that consists of nodes with different levels of properties and methods. Using the client language such as JavaScript, you can add, modify, and delete nodes in the tree ...

Node is a JavaScript runtime environment (runtime). It actually encapsulates the Google V8 engine (applied to Google http://www.aliyun.com/zixun/aggregation/33824.html ">chrome browser"). The V8 engine executes JavaScript very quickly and performs very well. node is optimized for some special use cases, providing an alternative API that enables V8 to ...

Research and Development Weekly: Magic! 1KB JavaScript code written by 3D Bee published in 2013-03-29 13:43| Times Read | SOURCE csdn| 0 Reviews | The author Zhang Hong Month Research and Development weekly Javascriptpatrick Wyatt Game development Third party application open platform Open source Polycode Summary: Busy week finally past, leisure time may wish to savor our carefully presented for you this technical feast. Current Issue: Magic! 1KB JavaScript code written by 3 ...