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  How to teach "Modern" Perl?

Since I started my Perl Tutorial series a couple of people commented on what and how I am teaching.Some people asked why did I show "open or die" and why not using autodie. Others recommended the use IO::All instead of open.Another complaint was the introduction of time and localtime instead of DateTime.While I was mostly writing parts of my regular training material these comments led me to think about it again. I wonder how to teach Perl in 2012?When I started to write the tutorial I still cal...

   Perl,Trainning,Teach,Modern,Modern Perl     2011-11-15 08:40:18

  Use Memory Analyzer Tool in Eclipse

When developing applications, we often encounter memory issues of an application. To analyze how much memory each class takes, we need to have some specific tools to assist us. One of them is Memory Analyzer Tool on Eclipse. The Eclipse Memory Analyzer is a fast and feature-rich Java heap analyzer that helps you find memory leaks and reduce memory consumption. To use the Memory Analyzer Tool, you first need to install it on Eclipse. You can go to Help -> Install New Software.... Paste  h...

   Memory analyzer tool, Eclipse,heap dump, HPROF     2014-10-28 07:22:35

  Understanding the "this" keyword in JavaScript

Many people get tripped up by the this keyword in JavaScript. I think the confusion comes from people reasonably expecting this to work like “this” does in Java or the way people use “self” in Python. Although this is sometimes used to similar effect, it’s nothing like “this” in Java or other languages. And while it’s a little harder to understand, its behavior isn’t magic. In fact, this follows a relatively small set of simple rules. This...

   JavaScript,this,understanding     2012-03-29 13:48:59

  Nokia fires the Qt team

Recently, Nokia announced that they would lay off around 10000 employees, 700 of them are developers. Among these 700 developers, 100 are the core developers of the open source project Qt.Nokia is the main sponsor of the open source project Qt. According to Mirko Boehm, the core Qt team has around 100 people, this means that Nokia fires the whole Qt team.He criticized Nokia's decision, he thought that a responsible CEO should persuade the team to move to other platforms.Qt team is experienced, t...

   Nokia,Fire,Qt     2012-06-26 06:57:06

  JavaScript efficiency catch up

JavaScript is a very flexible language, we can write JavaScript code freely with various styles, different kinds of codes will have different execution efficiency. Here we summarize some tips we get from our development. Efficiency of JavaScript itself JavaScript has execution context chain, closures, prototype inheritance, eval etc. It brings us some magic features, but it also introduces the performance issue, if we don't use them properly, it will affect the codes execution efficiency. 1. Glo...

   JavaScript,efficiency,event delegation,eval     2013-04-02 04:08:46

  Thoughts on Running an Open Source Project

I spoke in the unconference at PHPUK last week, on running an open source project. I thought I would collect together my thoughts into one place before I lose the scratty piece of paper I wrote them down on. I'm not sure I'm the right person to be giving advice exactly, but these are the things that, having been project lead on joind.in for a while, I think are important. Community I love it when people share their code, just make something and publish it, but to my mind it isn't an open...

   Open source,Management,Readme,Community     2012-03-06 05:25:27

  GitHub : Code is the most direct way for programmers to communicate

If not invested by Andreessen Horowitz, GitHub might not be noticed by Forbes, CNN, New York Times. People didn't know this tool because it was very far away from the world -- GitHub is a project hosting service used by programmers.But to some programmers, it is not just a place for project hosting, it is`also the hub for open source projects, a place for programmers improving themselves and a social network for programmers.There are around 3.26 million projects hosted on GitHub currently, inclu...

   GitHub,Open source,Hosting,Social     2012-07-20 11:38:31

  Twitter to sponsor Apache Software Foundation

Twitter recently made a commitment that they would sponsor the Apache Software Foundation, it will become its official sponsor. The Apache Software Foundation is a nonprofit organization, it can provide the organization and management, legal and financial support for open source projects. As we all know, Twitter loves open source, and its engineers are often engaged in open source community to provide technical support. Twitter team is also responsible for the related construction of the o...

   Apache,ASF,Twitter,Sponsor     2012-04-20 12:08:06

  Getting the most out of your pixels - adapting to view state changes

In Windows 8, your apps run on a variety of screen sizes and under various view states. A user might have your app snapped to the side of a 25-inch desktop monitor, or fill the whole screen of a 10-inch widescreen tablet. In each case, you want your app to take full advantage of the available space. In this post, I show you how you can track the current size and view state of your app in code, and give you tips on how to write your app in the Windows 8 Consumer Preview to handle screen si...

   Windos 8,Metro,Resolution,Style     2012-04-23 06:13:02

  IE ActiveX(”htmlfile”) Transport, Part II

In my last post I discussed using the ActiveX(”htmlfile”) technique to provide a usable streaming transport in Internet Explorer. The solution I provided will work, but since writing the last article I’ve made significant progress in understanding why IE behaves the way it does with respect to the streaming transport. The previous solution amounted to creating an array of messages, pushing messages on that array from the htmlfile iframe, and popping messages off of the array i...

   IE,Http,Streaming,htmlfile,Transport,Act     2011-09-05 04:07:02

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