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Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 14,545 posts.
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Designing with types: Making illegal states unrepresentable
Encoding business logic in types
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The Three Projections of Doctor Futamura
Introduction The Three Projections of Futamura are a sequence of applications of a programming technique called 'partial evaluation' or 'sp...
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Zawinski's Law
“ Every program attempts to expand until it can read mail. Those programs which cannot so expand are replaced by ones which can. ” Coined by Jamie Zawinski (who called it the “ Law of Software Envelopment ”) to express his belief that all truly useful programs experience pressure to evolve into toolkits and…
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Part 1: Merging and patches
A recent paper suggested a new mathematical point of view on version control. I first found out about it from pijul, a new version control system (VCS) that ...
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Clean Coder Blog
Over the last several years we’ve seen a whole range of ideas regarding the architecture of systems. These include:
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bliki: Test Pyramid
Write most of your tests at a low level (unit tests) with a few broad-stack tests, eg via UI. UI tests tend to be fragile and slow.
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Elastic tabstops
Elastic tabstops - a better way to indent and align code
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Functional options for friendly APIs
What follows is the text of my presentation, Functional options for friendly APIs that I gave at dotGo this year. It has been edited slightly for readability.
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Common Misconceptions About Publishing
A while back I did a series of postings on the topic of Common Misconceptions About Publishing.
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Subresource Integrity Addressable Caching
A small number of popular JavaScript frameworks and libraries account for a substantial portion of the network, battery, and time budgets of users of the contemporary Web. Many applications include these libraries even if they only use a small portion of the functionality they provide. Large improvements seem possible…
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Taco Bell Programming
The more I write code and design systems, the more I understand that many times, you can achieve the desired functionality simply with clever reconfigurations of the basic Unix tool set. After all, functionality is an asset, but code is a liability . This is the opposite of a trend of nonsense called DevOps, where…
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jQuery file size
Note: The gzipped and Zopflinated file sizes refer to the total byte size of the file after compressing it using gzip or Zopfli with the default settings . For gzip, this boils down to gzip -6 file.js — the default compression level is 6 on a scale from 1 (fastest, but less compression) to 9 (slowest, but best…
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New Programming Jargon
Stack Overflow – like most online communities I’ve studied – naturally trends toward increased strictness over time. It’s primarily a defense mechanism, an immune system of the sort a child develops after first entering school or daycare and being exposed to the wide, wide world of everyday sneezes and coughs
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LOOP for Black Belts
In Chapter 7 I briefly discussed the extended LOOP macro. As I mentioned then, LOOP provides what is essentially a special-purpose language just for writing iteration constructs.
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Partmaps.org
All hotels in Mallorca. The best selection of Mallorca hotels with reviews and maps. Book in advance and save.
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Things that amuse me
I think the only serious gripe is what you call your biggest gripe, and I must say that I envy this in Haskell. As you know, in the eager world we tend to write out our own recursive functions, rather than use combinators. You give part of the reason; the other part is that deforestation and related transformations…
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The PHP Singularity
Look at this incredible thing Ian Baker created. Look at it! What you’re seeing is not Photoshopped. This is an actual photo of a real world, honest to God double-clawed hammer. Such a thing exists. Isn’t that amazing? And also, perhaps, a little disturbing? That wondrous hammer
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Raycasting
deltaDistX = sqrt(1 + (rayDirY * rayDirY) / (rayDirX * rayDirX)) deltaDistY = sqrt(1 + (rayDirX * rayDirX) / (rayDirY * rayDirY))
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Removing the PowerShell curl alias?
PowerShell is a spiced up command line shell made by Microsoft. According to some people, it is a really useful and good shell alternative. Already a long time ago, we got bug reports from confused users who couldn't use curl from their PowerShell prompts and it didn't take long until we figured out that Microsoft ……
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JavaScript’s internal character encoding: UCS-2 or UTF-16?
Does JavaScript use UCS-2 or UTF-16 encoding? Since I couldn’t find a definitive answer to this question anywhere, I decided to look into it. The answer depends on what you’re referring to: the JavaScript engine, or JavaScript at the language level.
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Master Foo and the Ten Thousand Lines
Master Foo once said to a visiting programmer: “ There is more Unix-nature in one line of shell script than there is in ten thousand lines of C. ”
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The Rule of Three
Every programmer ever born thinks whatever idea just popped out of their head into their editor is the most generalized, most flexible, most one-size-fits all solution that has ever been conceived. We think we’ve built software that is a general purpose solution to some set of problems,
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GameBoy Emulation in JavaScript: The CPU
In the first of this series of articles, I'll look at how a CPU can be emulated through JS, and start building an emulation core for the GameBoy console.
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Developers can run Bash Shell and user-mode Ubuntu Linux binaries on Windows 10
UPDATE: I've recorded a 30 min video with developers from the project as well ...
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Rails is omakase (DHH)
There are lots of à la carte software environments in this world. Places where in order to eat, you must first carefully look over the menu of options to order exactly what you want. I want this for my ORM, I want that for my template language, and let's finish it off with this routing library. Of course, you're going…
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Falling Into The Pit of Success
Eric Lippert notes the perils of programming in C++: I often think of C++ as my own personal Pit of Despair Programming Language. Unmanaged C++ makes it so easy to fall into traps. Think buffer overruns, memory leaks, double frees, mismatch between allocator and deallocator, using freed memory, umpteen dozen