SEARCH KEYWORD -- Complexity
What's Wrong with the For Loop
Closures in Java are a hot topic of late. A few really smart people are drafting a proposal to add closures to a future version of the language. However, the proposed syntax and the linguistic addition are getting a lot of push back from many Java programmers. Today, Elliotte Rusty Harold posted his doubts about the merits of closures in Java. Specifically, he asks "Why Hate the for Loop?": I don’t know what it is some people have against for loops that they’re so eager to...
For loop,Basic,Problem,Efficiency,Java 2012-02-24 05:06:15
The Wasteful Legacy of Programming as Language
A few years ago I visited a friend who is a graduate student in linguistics. After some time he asked me if I was aware of the work by Chomsky on formal languages. I told him that yes, Chomsky work was a basis for much of the developments in theoretical computer science. More than that, I was glad to learn that there was something technical that I could share and discuss with other people in linguistics. At the time I found this was just a great coincidence. It was only recently, though, t...
Programming language,Human language,Chomsky 2011-11-28 10:36:34
A Solution to CPU-intensive Tasks in IO Loops
Back in October 2011, Ted Dziuba infamously said that Node.js is Cancer. A provocative title to a provocative article. The only thing it didn’t really provoke in the commentary was much thought ;) Zing. My interpretation of the article is that Ted holds up the classic blocking-IO process-per-request (or thread per request; same difference) model as superior. Yet we all remember where the blocking-IO forking model got Apache in the early days. ...
CPU,Intensive IO loops,Solution,C++ 2012-02-06 07:42:40
Functional Programming in C++
Probably everyone reading this has heard “functional programming†put forth as something that is supposed to bring benefits to software development, or even heard it touted as a silver bullet. However, a trip to Wikipedia for some more information can be initially off-putting, with early references to lambda calculus and formal systems. It isn’t immediately clear what that has to do with writing better software. My pragmatic summary: A large fraction of th...
C++,Functional programming 2012-04-28 06:16:37
Python Patterns - An Optimization Anecdote
The other day, a friend asked me a seemingly simple question: what's the best way to convert a list of integers into a string, presuming that the integers are ASCII values. For instance, the list [97, 98, 99] should be converted to the string 'abc'. Let's assume we want to write a function to do this. The first version I came up with was totally straightforward: def f1(list): string = "" for item in list: string = string + chr(item) return string ...
Python,Optimization,Anecdote,Loopup,ASCII 2011-12-18 10:52:49
Learn from Haskell - Functional, Reusable JavaScript
Learn You a Haskell: For Great Good? For the last couple months I have been learning Haskell. Because there are so many unfamiliar concepts, it feels like learning to program all over again. At i.TV, we write a lot of JavaScript (node.js and front end). While many functional/haskell paradigms don’t translate, there are a few techniques that JS can benefit from. There are Haskell library functions for everything. At first I thought this was just because it was mature, but then I notice...
JavaScript,Haskell,Functional,Reusability,Feature 2012-02-21 05:30:51
Programming Language Readability
Lets compare some Python to Haskell for solving the same problem. The problem we’ll pick is Trie data-structure for auto-completions. We are interested not so much in the nitty gritty of the algorithm, but in the language style itself. Auto-complete has been in the programming news a lot recently; both a Python and a Haskell solver have turned up. (I suspect this post got flagged on Hacker News :( It never got on the front-page despite the rapid upvoting on a n...
Programming,Readability,Python,Haskell 2012-02-27 04:52:02
Introducing LocalDB, an improved SQL Express
Updated 2011-11-28: Added reference to the walkthrough of using LocalDB in Visual Studio 2010 and to the new LocalDB Installer. Updated 2011-11-02: Added reference to .NET Framework 4 support for LocalDB in the Q&A section. Introduction It gives me great pleasure to introduce a new version of SQL Express called SQL Express LocalDB. LocalDB is created specifically for developers. It is very easy to install and requires no management, yet it offers the same T-SQL language, programming surfac...
LocalDB,Microsoft,SQL Express 2012-03-31 00:13:43
Info -> Design -> Build
First who we are: account managers and business developers at web design agencies. This process is geared towards bigger agencies, however it can be applied to freelance and smaller shops in theory.The important piecesWeb design projects tend to be unique in nature, however it is important to have a basic process that can be applied in most cases. This process is executed in a linear fashion starting with information and ending in code, but requires iteration loops at each step.Information ...
Webdesign,Content,Info,Design,Build,Process 2011-11-13 08:25:21
Pros and cons of 6 most popular test automation frameworks
Not everyone dappling into systems for test automation knows how to leverage the maximum benefit and keep them going in top shape for a long time. That's where test automation frameworks come in – they're basically sets of rules, standards, protocols and guidelines which can be incorporated into practice or simply followed to provide beneficial execution environments for automation test scripts. Why are test automation frameworks important? Test automation frameworks offer m...
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