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Introduction to Haskell Typeclasses
In this article, we introduce you to typeclasses in Haskell: what they are, how they can be used, and how to define your own instances of typeclasses.
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The latest blog posts to take off on Hacker News. 2,332 posts.
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Khan Academy launches Khan World School online high school
Discover Khan World School @ ASU Prep, a fully online school for grades 6-12 with mastery-based learning, global collaboration and college credit options.
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Twitter buyout puts Mastodon into spotlight
The news of Elon Musk buying Twitter has put Mastodon into the public spotlight as an alternative social network, rapidly exploding our growth with over 30,000 new users in just a single day. This is because at Mastodon, we present a vision of social media that cannot be bought and owned by any billionaire, and strive…
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Slack’s Incident on 2-22-22
By Laura Nolan, with contributions from Glen D. Sanford, Jamie Scheinblum, and Chris Sullivan. Assessing conditions Slack experienced a major incident on February 22 this year, during which time many users were unable to connect to Slack, including the author — which certainly made my role as Incident Commander more…
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Type-Based Optimizations in the JIT
The official home of the Erlang Programming Language
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Be careful with that thing, it's a confidential coffee maker
Just keep it under wraps.
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GraalVM 22.1: Developer experience improvements, Apple Silicon builds, and more
Today we’re releasing GraalVM 22.1! This release brings new features and lots of improvements — we’ll cover the highlights in this blog…
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Effective Go
Go is an open-source programming language that focuses on simplicity, reliability, and efficiency, specifically designed to make it easy to build software at scale. Although it borrows ideas from existing languages, it has unusual properties that make effective Go programs different in character from programs written…
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MCC (Master Chief Collection) Server Incident Summary
<p>A deep dive into the recent incident that affected matchmaking and the custom games browser in Halo: MCC on April 1.</p>
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Zq: An easier and faster alternative to jq
Take an in-depth look at the different computational models of zq and jq.
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World military expenditure passes $2T for first time
(Stockholm, 25 April 2022) Total global military expenditure increased by 0.7 per cent in real terms in 2021, to reach $2113 billion. The five largest spenders in 2021 were the United States, China, India, the United Kingdom and Russia, together accounting for 62 per cent of expenditure, according to new data on…
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Overgrowth: Open-Source Announcement
Open Source We have worked on Overgrowth for 14 years. It is our longest running, ongoing project, and a massive reason why we have…
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Best Font for Online Reading: No Single Answer
Among high-legibility fonts, a study found 35% difference in reading speeds between the best and the worst. People read 11% slower for every 20 years they age.
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We unplugged a data center to test our disaster readiness
On Thursday, November 18, 2021, Dropbox did not go down. On a normal day this would be a non-event—a sign that everything was operating as usual. However, this day was anything but usual. At 5:00 pm PT, a group of Dropboxers were huddled on a Zoom call when the command was given to physically unplug our San Jose data…
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Datalog in JavaScript
Let's build a query engine from scratch. In about 100 lines of Javascript, we'll support joins, indexes, and find our answer for Arnold!
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Apple’s Private Relay can cause the system to ignore firewall rules
Apple’s Private Relay (Beta) feature calls home to Apple servers without respecting the firewall rules of the system, creating a leak that neither we, nor you, can stop without disabling the entire Private Relay feature.
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The Hare programming language
Hare is a systems programming language designed to be simple, stable, and robust. Hare uses a static type system, manual memory management, and a minimal runtime. It is well-suited to writing operating systems, system tools, compilers, networking software, and other low-level, high performance tasks.
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Marriage and luxury beliefs at the United Nations
There is probably no greater gift that two parents can give to their children than to provide them with a safe, stable and nurturing environment until they feel confident and independent enough to leave the nest. The US Centers for Disease Control and Prevention has placed the support of safe, stable and nurturing…
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UK-Morocco 10GW Renewable Electricity Interconnector Planned
The Morocco – UK Power Project, Xlinks’ most publicised venture, is designed to deliver 8% of Great Britain’s current electricity needs (3.6GW of clean, reliable power), which is enough for seven million homes.
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Internet spring cleaning: How to delete Instagram, Facebook and other accounts
So you’ve washed your sheets and vacuumed under the couch in the name of spring cleaning. But what about your online clutter? Apps that delight, inform a
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The Curse of Systems Thinkers
Somewhere between 15 and 20 years ago, I worked for a company. It was a very prestigious company, and it was a glorious and frustrating time. The company did amazing things. Literally unbelievable achievements - from my point of view anyway. But this was coupled with levels of chaos that led
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The Applesoft Compiler (TASC): We have the source code, in a sense
The desperation of programming under tight memory constraints.
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Introducing Threads in Beta
All users can now opt-in to our Threads Beta! Threads helps declutter the main room timeline by moving conversations and topics into the right panel.
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Celebrating 40 years of ZX Spectrum
The ZX Spectrum celebrates its 40 years anniversary today. Read more about how the community is still active - creating new content, archiving old content, and hacking on all sorts of hardware.
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How SHA-256 Works Step-by-Step
SHA-2 (Secure Hash Algorithm 2), of which SHA-256 is a part, is one of the most popular hash algorithms around. A cryptographic hash, also often referred to as a "digest", "fingerprint" or "signature", is an almost perfectly unique string of characters that is generated from a separate piece of input text. SHA-256…
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Got food cravings? What’s living in your gut may be responsible
A new Pitt study shows that the gut microbiome of mice influences their preferred diet. The results, researchers say, could apply to humans, too.
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GitHub: Private Profiles beta
Users now have the ability to turn their GitHub profile “private”, which gives users controls over features that share user data across the GitHub platform. To enable this setting, visit…