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Loopr: A Loop/Reduction Macro for Clojure
I write a lot of reductions: loops that combine every element from a collection in some way. For example, summing a vector of integers:
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 14,544 posts.
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Migrating to React’s New Context API
Let's compare the before/after of React's new context API.
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My two year old taught me constraint solving
My two-year-old son used a Brio wooden train set to explain constraint solving to his silly Dada.
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Turing Machines
An interactive introduction to Turing machines, the theoretical foundation of modern computing.
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Designing a Good DSL
A look at common mistakes in DSL designs and how to fix them
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Developing Service Oriented Architectures
Having spent the last four years rolling out a handful of service oriented architectures, some lessons are finally coming together, and this is an attempt at documenting them.
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What is the best pointer tagging method?
In this post, we are going to take a deep dive into pointer tagging, where metadata is encoded into a word-sized pointer. Doing so allows us to keep a compact representation that can be passed around in machine registers. This is very common in implementing dynamic programming languages, but can really be used…
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The Median-of-Medians Algorithm
In this post, we consider the problem of selecting the \(i\)-th smallest element from an unsorted list of \(n\) elements. Somewhat surprisingly, there is an algorithm that solves this problem in linea
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Programming War Stories: macOS Freeware/Shareware (2019)
Aaron Giles is a Seattle-area programmer, musician, web developer, and graphic designer.
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Compiling a Lisp: Reader
Adding a reader to our Lisp compiler
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Using Docker to develop and deploy Django apps
I finally managed to deploy Django in a Docker container on production! I’ve been trying to switch to a full Docker development/production model since Docker came out, but only recently did the ecosystem mature enough to allow me to easily use Docker both for development (where it excels, in my opinion) and on…
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Storm's first birthday
Storm was open-sourced exactly one year ago today. It's been an action-packed year for Storm, to s...
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Babashka Clojure nREPL as a system interface
Dmitri's blog about programming, Clojure, and software development
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Building Containers Without Docker
In this post I'll outline several ways to build containers without the need for Docker itself including buildkit, kaniko, GitHub Actions, GitLab and Jenkins
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Basics of Futexes
The futex (short for "Fast userspace mutex") mechanism was proposed by Linux contributors from IBM in 2002 [1] ; it was integrated into the kernel in late 2003. The main idea is to enable a more efficient way for userspace code to synchronize multiple threads, with minimal kernel involvement.
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Go 1.26 Interactive Tour
New with expressions, type-safe error checking, and faster everything.
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Improve Your Python: Metaclasses and Dynamic Classes With Type
Socolive TV phát sóng trực tiếp bóng đá hôm nay, link xem SocoliveTV sắc nét chuẩn HD. Cập nhật Lịch thi đấu, BXH, Highlight, Kết quả bóng đá mới nhất!
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Teaching Claude to QA a mobile app
“When life looks like Easy Street, there is danger at your door”— Grateful Dead, “Uncle John’s Band”
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An introduction to modern OpenGL
Table of Contents | Chapter 2 » OpenGL has been around a long time, and from reading all the accumulated layers of documentation out there on the Internet, it's not always clear what parts are h…
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URG
If you asked software engineers some of their “least hated” things, you’ll likely hear both UTF-8 and TCP. TCP, despite being 35 years old, is rock-solid, stable infrastructure that we take for granted today; it’s hard to sometimes realize that TCP was man-made, given how well it’s served us. But within every single…
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Let's build a simple interpreter for APL, part 2 (2020)
Today is the day! Today is the day we take our APL programs and interpret them, so that something like ÷ 1 2 3 -⍨ 1.1 2.2 3.3 can output 10 5 3.33333333.
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How to design an elliptic-curve signature system
Earlier this month a new paper by Naomi Benger, Joop van de Pol, Nigel Smart, and Yuval Yarom hit the news . The paper explains how to recover secret keys from OpenSSL's implementation of ECDSA-secp256k1 using timing information from "as little as 200 signatures"; ECDSA-secp256k1 is the signature system used by…