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Unicorn Unix Magic Tricks
This post is based on the talk of the same name I gave at the Arrrrcamp conference in Ghent, Belgium on October 2nd, 2014. You can find the slides here and the video recording here .
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 2,232 posts.
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Factorization diagrams in Haskell
Meta Title: Math, Sports Data & IPTV: A Portugal Guide Meta Description: Explore how math-minded sports fans use IPTV in Portugal to watch live football, Champi
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Windows Timer Resolution: The Great Rule Change
The behavior of the Windows scheduler changed significantly in Windows 10 2004 (aka, the April 2020 version of Windows), in a way that will break a few applications, and there appears to have been …
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Monads in JavaScript
Monad is a design pattern used to describe computations as a series of steps. They manage side effects in pure functional languages but can also be used in other languages to control complexity.
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Solving Tetris in C
Exactly one of the following statements is true. In Tetris, you can always get at least one line before losing. In Tetris, a sufficiently evil AI can always force you to lose without getting a single line, by providing bad pieces. Which one? Prove it. The setup I crea...
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A whirlwind introduction to dataflow graphs
While in the middle of writing “Reading bits in far too many ways, part 3”, I realized that I had written a lot of background material that had absolutely nothing to do with bit I/O and…
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Gap Buffers Are Not Optimized for Multiple Cursors
Gap buffers are a common data structure for representing a text buffer in a text editor. Emacs famously uses gap buffers — long-standing proof that gap buffers are a perfectly sufficient way to represent a text buffer.
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How Python 3 Should Have Worked (2012)
As a workaday Python developer, it’s hard to shake the feeling that the Python 2 to 3 transition isn’t working. I get occasional requests to make my libraries work in 3 but it’s far from clear how to and when I try to look it up I find all sorts of conflicting advice, none of which sounds very practical.
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Practicing Programming (2005)
Practicing Programming Stevey's Drunken Blog Rants™ Back in October I wrote an essay in which I compared programming to other professions. In it, I made the unsubstantiated claim that programming is unusual, in that most programmers don't practice their craft -- at least, not in any disciplined
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Understanding lvalues and rvalues in C and C++
The terms lvalue and rvalue are not something one runs into often in C/C++ programming, but when one does, it's usually not immediately clear what they mean. The most common place to run into these terms are in compiler error & warning messages. For example, compiling the following with gcc :
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Implementing VisiCalc (2003)
I'm writing this in preparation for the Computer History Museum's The Origins and Impact of VisiCalc panel on April 8th 2003. This is basically a draft and I hope to do some more editing as time permits and you should expect many typos until then. I'm also going to continue to edit and change this as I remember…
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P vs. NP for Dummies
A reader named Darren commented on my last post: I have this feeling that this whole P and NP thing is not only a profound problem that needs solving, but something that can be infinitely curious t…
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Ravelry - a very successful deployment of Ruby and Rails
Possibly you’ve never heard of it. But if you know anyone who knits or crochets, ask him or (more likely) her about Ravelry and chances are you’re talking to an active member. It’s big. This is an interview with Casey Forbes , who constitutes the whole engineering staff.
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Slides and notes from my three hour Redis tutorial
These slides and notes were originally written to accompany a three hour Redis tutorial I gave at the NoSQL Europe conference on the 22nd of April 2010.
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Extreme Pair Programming - Guy Steele and Richard Stallman
"We sat down one morning," recalls Steele. "I was at the keyboard, and he was at my elbow," says Steele. "He was perfectly willing to let me...
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WebKit gets a new JavaScript profiler courtesy of 280 North (YC W08)
New Profiling and Debugging Tools in WebKit
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Problems with TDD
If you have not yet read it, please read Maria Siniaalto's 15 page " Test-Driven Development: empirical body of evidence ." It summarizes the few empirical studies done to evaluate the effectiveness of TDD. In the conclusion you'll find:
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Running Shells in Emacs: An Overview
One of Emacs's strongest capabilities is its ability to talk to external shells, like bash, or emulate an entire terminal. But this being Emacs, you have more than one choice to choose from − and which choice is right for you?
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JQuery is a monad
It’s said that every Haskell programmer writes their own monad tutorial, and with good reason: once you finally understand the definition and capabilities of a monad, you’ll be eager to…
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Mockingbird, Cappuccino, and what really matters
What makes an app an app?