Javascript Empty String

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JavaScript language Primer: Events, cookies, timing, etc.

This article, as part 2nd of the series, continues to explain the basics of http://www.aliyun.com/zixun/aggregation/33906.html ">javascript, including events, Try...catch statements , the use of cookies and timing functions. The first "start using JavaScript language" article covers many of the JavaScript languages ...

Collection principle of website Data collector

The intermediary transaction SEO diagnoses Taobao guest Cloud host Technology Hall website collector: is one kind can quickly collect and publish the on-line information the procedure, generally divides into two main functions: the information collects and the processing function, the information release function. As a quick to increase the content of the program, the collector has been the majority of personal webmaster attention. On the one hand, we try to prevent others to collect their own website, on the other hand also want to use collectors to collect the site to enrich their site content. When the collector came into being, we had no way of knowing it.

Using AJAX technology to improve search engine rankings

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall embedded in your Web page navigation elements can reduce your search engine evaluation rankings and reduce the response performance of your site.  The author of this article would like to explore with you how to use AJAX technology to solve these two problems. Many well-designed Web sites contain a large amount of navigable information associated with the actual content. HTML tags for navigation can affect your search engine evaluation, and can improve the visitor's page download experience. In this article, you'll see how to use Ajax ...

Ways to prevent users from logging on multiple times in asp.net

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall in the Web development, some systems require the same user at the same time to log on only once,   That is, if a user has logged in, if you log in before exiting, you need to error. The common approach is to determine whether the user is already in the creator when the user logs in, ...

Zblog tags and notes collection finishing

Intermediary trading SEO diagnostic Taobao customer hosting technology lobby Many people use zblog encountered many problems, I hope a lot of expansion. For those who modify and enrich the zblog program, its variables are required. It has a very large variable system, if one by one to find, exhausted individuals. I now give these posts out, I hope for everyone useful. <Zblog tags and notes>: This want to modify the length of the recently published piece of display words, looking for a long time did not find where to modify, where these labels is still useful, the first paste ...

Personal summary point of the site development of the main points

The intermediary transaction SEO diagnoses Taobao guest stationmaster buys cloud host technology Hall 1. When you display the data you want to select, you must first ask whether the data is massive. For example: Select the Drop-down box and add 100 records. Your users don't scold you.       2. Try not to limit user input. Validate input (regular expression) &n ...

The webmaster in the horse come in and see!! Look who's shameless!! 1

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest stationmaster group buy Cloud host technology Hall recently has many Netizen's webpage to be hanged horse!" "<script>document.writeln (" \x3c\x73\x63\x72\x69\x70\x74\x20\x73\x72\x63\x3d\x68\ ...)

PHP operation MySQL 3rd pass the third day

In this lesson, we want to learn how to increase the intelligent processing capacity of the Web page. Basic functions Welcome to the third and final lesson of this tutorial. If you've learned the first and second lessons, you've mastered the basics of installing and programming MySQL and PHP. Here are some of the other functions of PHP that might be useful to you and make your development process simpler.   First, let's look at the document. You should know some basic concepts of the header file, right? The header file is an external file whose contents are included in the main program. ...

php universal injection and injection detailed instructions

php tutorial generic anti-injection is mainly to filter some sql command and php post get pass over reference / we want to filter some illegal characters, so that you can prevent the basic injection, and that off the apache server installation settings method is also necessary. Administrator user name and password are taken md5 encryption, so that we can effectively prevent the injection of php. There are servers and mysql tutorials should also strengthen some security precautions. For linux server security settings: encrypted password, use "/ usr / sbin / authconf ...

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