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Ruby already solved my problem
One great question in office hours led me to delete a whole class.
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 14,535 posts.
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Data-Oriented Architecture
An in-depth look at Data-Oriented Architecture (DOA): monolithic data stores vs microservices, scaling benefits, and real-world case studies.
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Explaining Programming to Six-Year-Olds
It was more fun than I expected! I treated this seriously and I was well prepared, and it paid off. The kids were interested and I think they might even remember something.
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Modern Web Applications are Here
Battlefield 3’s Battlelog system is an interesting web application that many of us missed. Here is why it’s amazing and worth a look at.
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Zig, Skia, Clojure, Geometry and the Japanese TV Show: ICFP Contest 2021
4-day coding marathon
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How to open a file in Emacs: a story about Lisp, technology, and human progress
A short story about Lisp, technology, and human progress.
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Linear Algebra: What matrices are
Most high school students in the United States learn about matrices and matrix multiplication, but they often are not taught why matrix multiplication works the way it does. Adding matrices is easy…
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Nested code fences in Markdown
Today, we will meet a spiky-haired nerd named Corey Dumm, who normally lives within Markdown code fences. We will get to know him a bit, smile with him when his fences hold and weep quietly when misfortune strikes.
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Booting a macOS Apple Silicon Kernel in QEMU
I booted the arm64e kernel of macOS 11.0.1 beta 1 kernel in QEMU up to launchd. It’s completely useless, but may be interesting if you’re wondering how an Apple Silicon Mac will boot.
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So you want to write a fast Python?
Thinking about writing your own Python implementation? Congrats, there are plenty out there 1 , but perhaps you have something new to bring to the table. Writing a fast Python is a pretty hard task, and there’s a lot of stuff you need to keep in mind, but if you’re interested in forging ahead, keep reading!
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Implementing Font-Size in Servo: An Unexpectedly Complex CSS Property
font-size is the worst. It’s a CSS property probably everyone who writes CSS has used at some point. It’s pretty ubiquitous. And it’s super …
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How safe is Zig?
I keep seeing discussions that equate zig's level of memory safety with c (or occasionally with rust!). Neither is particularly accurate. This is an attempt at a more detailed breakdown.
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Why Not Comments
Why not "why not" comments? Not why "not comments"
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Escaping Hell with Monads (2017)
As programmers we occasionally find ourselves in “Programmer’s Hell”, where our regular abstractions fail to satisfactory solve certain recurrent problems.
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Uber's crazy YOLO app rewrite, from the front seat
I've worked on many projects throughout my career as a software engineer. However, Helix - Uber's Rider app rewrite in 2016 introducing Swift and RIBs - stands as the craziest project by a margin. This is my story and some of my journal entries from the time. Prologue It's
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The overengineered solution to my pigeon problem
TL;DR: I built a wifi-equipped water gun to shoot the pigeons on my balcony, controlled over the internet by a python script running openCV reading the camera image of my old iPhone. Introduction The pigeons in my backyard find particular pleasures in voiding their excrements onto my balcony. Dissatisfied with this…
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What are the odds that some idiot will name his mutex ether-rot-mutex (2017)
As part of my job I spend quite a lot of time scanning through files and disk contents, often in hex or filtered text view, searching for sp...
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The Fastest FizzBuzz Implementation
Benchmarks & Tips for Big Data, Hadoop, AWS, Google Cloud, PostgreSQL, Spark, Python & More...
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A Universe in One Line of Code with 10 PRINT
Generating a Universe with One Line of Code
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Dear Oracle, Please Release the JavaScript Trademark
In 1995 Netscape partnered with Sun Microsystems to create interactive websites . Famously Brendan Eich spent only 10 days to create the first version of JavaScript - a dynamic programming language with a roughly syntactic lineage from Sun’s Java language. As a result of this partnership Sun held the trademark…
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In Emacs, everything looks like a service
A common refrain is that Emacs is an operating system (OS). This isn’t true, but what invites comparison to an OS is its ability to orchestrate applications and utilities above the OS kernel...
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Clojure 2014 Year in Review
My unscientific, incomplete, thoroughly biased view of interesting things that happened with Clojure in 2014.
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Commit often, perfect later, publish once: Git best practices (2013)
Best Practices vary from environment to environment, and there is no One True Answer, but still, this represents a consensus from #git and in some cases helps you frame the discussion for the generation of your very own best practices.
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