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Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 14,540 posts.
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Visualize Data Structures in VSCode
VSCode Debug Visualizer is a VSCode extension that allows you to visualize data structures in your editor
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A kids traffic mat in Elm
A wrap-up of several years of development and the alpha release of Liikennematto.
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LLMs as the new high level language
[UPDATE 2026-06-09]: a few months on, I have more misgivings than certainties about this.
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Functional Programming – How and Why
Let's start with an example. In Advent of Code 2022 day 1 we get groups of numbers as input like: 1000 2000 3000 4000 5000 6000 7000 8000 ...
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Elegant Error Handling with the JavaScript “Either” Monad
JavaScript gives us a built-in language feature for handling exceptions: try…catch statements. And they’re better than littering our code with if-statements. But they can be problematic. And they are not the only way to handle errors. In this article, we’ll take a look at using the ‘Either monad’ as an alternative to…
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Stop making me memorize the borrow checker
I started learning Rust about 3 or 4 years ago. I am now knee-deep in several very complex Rust projects that keep slamming into the limitations of the Rust compiler. One of the most common and obnoxious problems is hitting a situation the borrow-checker can’t deal with and realizing that I need to completely…
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Don't use bcrypt
(Edit: Some numbers for you people who like numbers) If you're already using bcrypt, relax, you're fine, probably. However, if you're ...
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Who needs Git when you have 1M context windows?
Lately I’ve heard a lot of stories of AI accidentally deleting entire codebases or wiping production databases . But in my case it was the other way around. I removed some working code and the LLM helped me to recover it.
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Localisation is too hard for Gmail
/ləʊk(ə)lʌɪˈzeɪʃ(ə)n/ The ability to adjust a user-interface to the user's local language or dialect Because I live in the UK, I speak en_GB (English, Great Britain) rather than en_US (English, Simplified United States). Mostly, all dialects of English are mutually intelligible. Sure, the Brits love the letter U and…
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Single binary executable packages
In support of software packages that come in the form of a single binary executable (statically linked or portable), that one can just copy anywhere in `${PATH}` and execute, without needing `sudo`, or downloading half the distribution's packages as dependencies.
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You Don't Need Anubis
don't use anubis just to block llm scrapers
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GPT-3 will ignore tools when it disagrees with them
Augmenting GPT-3 with tools is a popular technique right now. But is GPT-3 really using them?
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Three Months of Go from a Haskeller’s perspective (2016)
This summer I’ve been interning at Pusher , and have been writing a lot of Go. It’s been a bit of a change coming from a Haskell background, so I decided to write up my thoughts now, at the end.
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Golang: Don't be afraid of makefiles
I’m using Golang for a while. During the development, I was used to repeatedly execute “go build”,“go test” manually. This was a bad habit on which I resign. It is not so painful if you use simple command without any args. But in case of more complex tasks, naturally, it is going to be a…
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Localization Failure: Temperature Is Hard
The Guardian is one of my favorite news sources. I’m a subscriber (support news organizations!) and I read it daily. But it is not immune to errors, as this headline shows:68 °F above average is a …
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The visitor pattern is essentially the same thing as Church encoding
The functional programming analog of an object-oriented design pattern
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Today I learned that bash has hashmaps (2024)
Xe Iaso's personal website.
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SQL reserved words – An empirical list
These words cause problems as table or column name
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CTEs as lookup tables
How to use a CTE instead of complicated CASE expressions