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  Regular expression to get html meta description

When we need to process a HTML page source code, we often need to retrieve the meta description of the page besides the links in the page. This description is usually located in <meta> tag of a HTML page. The meta description is very useful for search engine index. How can we retrieve the meta description? If we use a regular expression, we can easily get the meta description. In JavaScript, the regular expression looks like : var pattern = /<meta.*?name="description".*?content="(.*?)"....

   Regular expression,meta description,HTML,JavaScript     2012-07-03 10:09:20

  Writing unit tests for legacy code – an open letter to developers I work with

This is an email I sent today to developers who work with me, it is exactly as I wrote it except for project and developer names which I’ve redacted. Dear Developers, S asked me a difficult question today, and I think the answer (which took me a few minutes to arrive at) is worth sharing with all developers, mainly because many of you will surely face the exact same problem especially in [maintenance and enhancement] projects. By now I think it is crystal clear that one of our non-ne...

   Unit testing,Open letter     2012-02-09 05:39:56

  A Guide on Creating a Magento 2 Extension

Normal 0 false false false EN-US X-NONE X-NONE

   MAGENTO, MAGENTO 2,MAGENTO 2 MODULE CREATOR     2016-02-29 03:08:08

  NIO vs IO in Java

Java 1.4 provides a new API for handling IO -- NIO. This is a non-blocking and buffer oriented IO API. Below are main differences between the NIO and IO in Java. IO NIO Stream oriented Buffer oriented Blocking IO Non-blocking IO N/A Using selector Stream oriented vs Buffer oriented The main difference is that IO is stream oriented where the data is read byte by byte and the data will not be buffered normally.This means there is no pointer to move forward and backward in the stream. I...

   JAVA,IO,NIO     2016-01-10 01:40:02

  Get hostname from a URL using JavaScript

Sometimes we may have strings which contain some UR;s and we may want to retrieve the hostname from the URLs for some statistic use. For example, we may have a URL : http://www.example.com/aboutus.html. We may want to retrieve the www.example.com from the URL. How? Use regular expression. Here I give an example using JavaScript. If you want to check whether a string is a URL or not. Refer to Detect URLs in a Block of Text. In JavaScript, we can have a regular expression like var pattern=/(.+:\/\...

   JavaScript,URL,regular expression, Hostname     2012-06-15 09:16:45

  An alternative way to parse URL in JavaScript

Normally when we need to process URL in JavaScript, we may use the location object. Then we can use location.hostname,location.href,location.port etc to get the information we need. In this post, we will parse an URL with an alternative way. We can use an URL to create a DOM object by calling document.createElement("a"). The complete code is: function parseURL(url) { var a = document.createElement('a'); a.href = url; return { source: url, protocol: a.protocol.replace(':',''), host: a.ho...

   URL,location,parse     2014-03-03 07:05:11

  Google will launch new rendering engine Blink

Google announced new rendering engine Blink derived from the open source WebKit on Chromium project's official blog. This is to speed up the innovation and development process. It will take some time for Chrome to switch from Webkit to Blink.Opera has just switched to WebKit, what will they think about Google's move? Opera's Bruce Lawson said in a blog that Opera browser would use Blink engine and contribute to Blink community.For Google, a powerful rendering engine means that Chrome OS ca...

   Google,Blink,,Webkit,Render engine     2013-04-04 04:11:23

  Essential skills any web developer should have

As a web developer, besides writing HTML code, there is much more to do before the site can go live. You may consider about user experience, device compatibility, security etc. To be a good web developer, you should acquire some essential skills for web development. Below we list some of them. Some of them you may be familiar with a long time ago, but definitely some of them you may not be so familiar with or even never hear about before. Interface and User Experience Be aware that browsers imp...

   Web development,User experience     2014-03-21 06:44:49

  Write HTML easily with Emmet and Haml

Writing HTML codes is very boring and tedious as it has many tags and it's static. One solution is to use template, filling content based on other's skeleton. One another solution is high speed writing. We can write HTML codes with Emmet and Haml. These two ways have similar functions but with different characteristics. Haml is based on Ruby, so when working on Ruby/Rails projects, we recommend to use Haml, otherwise we recommend to use Emmet. 1. Emmet Emmet is a editor plugin, the official webs...

   HTML,Emmet,Haml     2013-06-11 19:46:02

  2 million iPhone 5 sold in China in 3 days

Apple announces that since it was available in China from last Friday, iPhone 5 has been sold over 2 million units in 3 days. iPhone 5 was available for sale in China starting from 14th Dec, the price is 5288RMB and up, there are two cooperated vendors in China : China Telecom and China Unicom. They start sell iPhone 5 on their own sales channels, moreover Apple starts selling iPhone in their own Apple Store and official website. According to Tim Cook, because of the high demand of Apple product...

   iPhone 5, China, Sale     2012-12-17 12:27:59

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