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Scala feels like EJB 2, and other thoughts
At Devoxx last week I used the phrase "Scala feels like EJB 2 to me". What was on my mind?ScalaFor a number of years on this blog I've been mentioning a desire to write a post about Scala. Writing such a post is not easy, because anyone who has been paying attention to anti-Scala blog posts will know that writing one is a sure fire way of getting flamed. The Scala community is not tolerant of dissent.But ultimately, I felt that it was important for me to speak out and express my opinions. As I s...
Scala,Module,EJB,Concurrency,Feature 2011-11-22 08:29:44
Responsive Web Design
With the popularity of 3G, more and more people are surfing the Internet using mobile phones. Mobile devices are becoming common devices for accessing internet. So web design faces a big challenge which is how to display the same webpage on different devices with different screen resolutions.Screen resolution of mobile device are usually not very large, the width is below 600px, while PC usually has a resolution over 1000px. It is not an easy task to display the same content with satisfyin...
CSS,Web design,Layout,Response web design 2012-05-03 06:59:40
Touching and Gesturing on iPhone, Android, and More
One of the most important parts of creating an effective and intuitive user interface on touch-enabled smartphones has nothing to do with visual appearance—instead, it has to do with creating an interface that properly responds to user input based on touch. For Web applications, this means replacing mouse events with touch events. In Dojo 1.7, new touch APIs help make this process easy. This is an updated version of the post Touching and Gesturing on the iPhone, published in 2008. I...
SSH Security and You - /bin/false is *not* security
Backstory While at RIT around 2004 or 2005, I discovered that a few important machines at the datacenter allowed all students, faculty, and staff to authenticate against them via ssh. Everyone's shells appear to be set to /bin/false (or some derivative) on said machines, so the only thing you'll see after you authenticate is the login banner and your connection will close. I thought to myself, "Fine, no shell for me. I wonder if port forwarding works?" ...
Linux,Security,/bin/false,SSH 2012-02-06 07:46:29
A Programmer’s Greatest Enemy
A programmer’s greatest enemy is getting stuck. A crucial skill in programming—and one that many of my beginning game programming students lack—is the ability to recognize when they’re stuck, to get out of being stuck, and to avoid getting stuck in the first place.Indeed, it’s a skill I’m still learning myself, although the contexts in which I still get stuck are shrinking with time, study, and experience.This morning, as I downloaded crash reports ...
Programming,Enemy,Stuck,Game design,Crash 2011-10-15 15:06:46
The Evolution of a Programmer
High School/Jr.High 10 PRINT "HELLO WORLD" 20 END First year in College program Hello(input, output) begin writeln('Hello World') end. Senior year in College (defun hello (print (cons 'Hello (list 'World)))) New professional #include <stdio.h> void main(void) { char *message[] = {"Hello ", "World"}; int i; for(i = 0; i < 2; ++i) printf("%s", message[i]); printf("\n"); } Seasoned professional #include <iostream....
Humour,Evolution,Programmer 2012-04-23 06:30:33
Why is single threaded Redis so fast
Redis is a high-performance, in-memory key-value database. According to official test reports, it can support around 100,000 QPS (queries per second) on a single machine. However, Redis uses a single-threaded architecture in its design. Why does Redis still have such high performance with a single-threaded design? Wouldn't it be better to use multiple threads for concurrent request processing? In this article, let's explore why Redis has a single-threaded architecture and still maintains its spe...
REDIS,SINGLE-THREADED,MULTI-THREADING 2023-02-28 05:16:22
On Erlang's Syntax
I first planned to release this text as an appendix entry for Learn You Some Erlang, but considering this feels more like editorial content and not exactly something for a reference text, I decided it would fit better as a blog post. Many newcomers to Erlang manage to understand the syntax and program around it without ever getting used to it. I've read and heard many complaints regarding the syntax and the 'ant turd tokens' (a subjectively funny way to refer to ,, ; and .), how annoying...
Thoughts on Python 3
I spent the last couple of days thinking about Python 3's current state a lot. While it might not appear to be the case, I do love Python as a language and especially the direction it's heading in. Python has been not only part of my life for the last couple of five years, it has been the largest part by far. Let there be a warning upfront: this is a very personal post. I counted a hundred instances of a certain capital letter in this text. That's because I am very grateful for all the opport...
Python,Python 3,Feature,Drawback,Embrace 2011-12-07 08:46:47
Have you used these JavaScript libraries before?
Are you a vanilla JavaScript developer or a JavaScript library lover? If you are a vanilla JavaScript developer, please feel free to step away silently because you may not get what you want, but if you are a library or framework lover, please bookmark this page as what we list below are what you may use in the future. There are tons of JavaScript libraries created to ease the headache of developers who have to deal with different browsers on different devices. You may use some of them befo...
JavaScript,Framework,Library 2014-09-27 22:06:55
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