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What the Heck are Algebraic Data Types? ( for Programmers )
This post is meant to be a gentle introduction to Algebraic Data Types. Some of you may be asking why you should learn Algebraic Data Types and how will they change your world? I am not going to answer that, but suffice it to say that Algebraic Data Types are the underpinning of the type systems to the ML derived languages, Haskell and OCaml included, and their construction and properties allow for the power (and inference) that accompanies these type systems. They are cropping...
Algebraic Data Type,Set,Operator,Programmer 2011-12-30 08:31:43
The 15 Golden Rules of UI design and flow.
Last night a good friend of mine showed me the latest Need for Speed game on the iphone / ipad. Quite an impressive feat of rendering and a relatively good game to boot. However, the front end, wow, a classic case in UI mis-engineering. Loads of stats, pages and pages of bits and pieces to wade through – a classic case of over stimulating the player with lots of decisions they have no business making – stuff that will significantly change their game play experience but being...
UI design,Game design,Feature 2012-04-05 12:20:18
How to hire an idiot
Wow, I remember how idealistic I was when I was about to bring on my first employee! After dealing with bad bosses over my career, after doing a whole lot of thinking about how I was going to be a great boss, and after doing a whole lot of reading about how to hire effective people, I was really looking forward to it. I was going to:-- Hire people smarter than myself, who get things done!-- Trust them to do their job, let them do their job and give them enough resources to do it!-- Pay them WELL...
Employee,Idiot,Work experience,Pay,Process 2011-10-24 11:47:54
Use DTrace to diagnose gdb issues
A few days ago, I installed the newest 64-bit gdb program (version 7.7.1) on Solaris 10 (X86_64 platform) to debug programs. After playing with the gdb a day, I found 2 issues about gdb:(1) The "set follow-fork-mode child" command doesn't take effect. By default, after the parent process forks the child process, the gdb will track the parent process, so this command can make gdb begin to follow the child process. But this command works OK on Linux.(2) The gdb can't parse the 32-bit application c...
Good to Great Python reads
A colÂlecÂtion of python “must readsâ€:The Python yield keyÂword explainedPython’s super() conÂsidÂered super!UnderÂstandÂing Python DecoratorsWhat is a metaÂclass in Python?MetaÂclasses DemystifiedTry/Catch for valÂiÂdaÂtion or speed?Python (and Python C API): __new__ verÂsus __init__Python “self†keywordPython and the PrinÂciÂple of Least AstonishmentA CuriÂous Course on CorouÂtines and Concurr...
Python,Reference,eBook,Reading Material 2011-11-15 11:46:12
JavaScript Attack/Defend
As developers and designers we work hard to build visually attractive, fast and easy to maintain applications. Our goals are to make sure the applications we build stick to users and keep them coming back for more. Security is not always at the forefront of our minds. No one intentionally builds insecure software but often a lack of security knowledge leads developers to build vulnerabilities into their applications. In this article we are going to examine two web security attacks, how they are ...
JavaScript,Attack,Defend,Security,Cross site 2011-10-13 13:09:11
Stop Designing Pages And Start Designing Flows
For designers, it’s easy to jump right into the design phase of a website before giving the user experience the consideration it deserves. Too often, we prematurely turn our focus to page design and information architecture, when we should focus on the user flows that need to be supported by our designs. It’s time to make the user flows a bigger priority in our design process. Design flows that are tied to clear objectives allow us to create a ...
Web design,Paradigm,Advice,User experience,Flow 2012-01-05 08:16:18
PHP: a fractal of bad design
Preface I’m cranky. I complain about a lot of things. There’s a lot in the world of technology I don’t like, and that’s really to be expected—programming is a hilariously young discipline, and none of us have the slightest clue what we’re doing. Combine with Sturgeon’s Law, and I have a lifetime’s worth of stuff to gripe about. This is not the same. PHP is not merely awkward to use, or ill-suited for what I want, or suboptimal, or...
Create successful Python projects
The ecosystem for open source Python projects is both rich and diverse. This enables you to stand on the shoulders of giants in the production of your next open source project. In addition, it means that there's a set of community norms and best practices. By adhering to these conventions and applying the practices in your project, you may gain wider adoption for your software. This article covers practi...
Python,Project,Open Source,Team Management 2012-02-03 08:09:27
Top 10 Go Coding Traps and Tips
Go is currently the most common programming language in cloud development. Though I use it very much in my work, I am still repeating certain mistakes. This article is more a record of these errors, figuring out the causes and solutions so that people who read this article will save themselves time when coming across the same problems. Let’s cut through to the tips. Don’t rely on index var in the for loop The most common mistake we make is that we often create goroutine&nbs...
TIPS,GOLANG,NIL INTERFACE 2021-07-03 23:45:51
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