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Worst practices are viral for the wrong reasons (2014)
Perverse incentives surrounding best practices
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Programming Languages
The most popular blog posts about programming languages on Hacker News. 5,634 posts.
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Java 9: The State of the Module System
This document is slightly out of date. None of the fundamental concepts has changed but the requires public directive has been renamed to requires transitive , and several additional capabilities have been added. An update is in preparation and will be posted here when ready.
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High-Performance GPU Computing in the Julia Programming Language (2017)
Julia is a high-level programming language for mathematical computing that is as easy to use as Python, but as fast as C. The language has been created with performance in mind…
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Fun - a new programming language for the realtime web
What if you could build realtime web apps with the same ease as you build static web pages in PHP today? Without long polling, event handling and state synchronization, the engineering complexity of realtime web applications would drop by an order of magnitude. There would be a fundamental shift in the way we build…
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The C++ Lifetime Profile: How It Plans to Make C++ Code Safer
This blog post explains what the C++ Lifetime Profile is and how it intends to make the language safer and help avoid memory management problems.
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Python's splitlines does more than just newlines
I always assumed that Python's str.splitlines() split strings by " universal newlines ", i.e., \n , \r , and \r\n .
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Build a web service with F# and .NET Core 2.0
Earlier this year, I wrote about an update to the roadmap for F# and .NET Core. I had mentioned that there were a number of things you could build with F# and .NET Core today, such as web services. In this post, I’ll walk through building a web service with F# and .NET Core 2.0 […]
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The future of the Crystal language
(This post is part of Crystal Advent Calendar 2015)
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Building a Lisp from scratch with Swift
This article describes how you can build a simple LISP, based on the 1978 article <i>'A Micro Manual For LISP - Not The Whole Truth'</i> with Swift, taking advantage where possible of the features the language offers.
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We automatically fixed thousands of Ruby 2.7 deprecation warnings
The upgrade to Ruby 2.7 for GitLab involved thousands of deprecation warnings across hundreds of files. Here's how we fixed most of them.
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Writing a simple SQL interpreter in Julia
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Lessons in Managing Haskell Memory
At Channable, we process several billion product data records for our customers every day according to user-customizable rules. Internally, this work is subdivided into jobs, where one job takes a set of products and the rules for how to process them as input, and returns the transformed set of products as output…
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Kalyn: A self-hosting compiler for x86-64
Over the course of my Spring 2020 semester at Harvey Mudd College , I developed a self-hosting compiler entirely from scratch. This article walks through many interesting parts of the project. It’s laid out so you can just read from beginning to end, but if you’re more interested in a particular topic, feel free to…
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Cedarwood: Efficiently-Updatable Double Array Trie in Rust
Cedarwood is an effort to speed up jieba-rs , an efficient implementation of trie is needed in order to satisfying the following needs.
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Why I love Common Lisp and hate Java (2012)
“Common what?” is a common reply I get when I mention Common Lisp. Perhaps rightly so, since Common Lisp is not all that common these days. Developed in the sixties, it is one of the ol…
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If I were to invent a programming language for the 21st century
A short essay about the evolution of programming languages.
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What Happened to Perl 7? (2022)
With Perl 5.36.0 just around the corner, we thought that this is a good time to clarify plans for the future of the Perl programming language. We realised that the future was hammered out in a number of steps, across several months. This meant that there hasn't been a single statement we could refer people to. This…
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OCaml Syntax Sucks (2016)
OCaml's let … = … in … is very confusing. When nested, you can't tell how it's nested.
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Chris Lattner on the Realm WWDC 2017 Swift Panel
I typed up some quotes from Chris Lattner on a recent panel discussion about Swift.
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Traits are a local maximum
An expose on Implicits and Local Coherence
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Value Types for Java – A sketch of proposed enhancements
This is a sketch of proposed enhancements to the Java Virtual Machine instruction set, and secondarily to the Java Language, to support small immutable, identityless value types . (They may also be considered as identityless aggregates, user-defined primitives, immutable records, or restricted classes.) This is an…
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Clojure or: How I Learned to Stop Worrying and Love the Parentheses
I'm a longtime Java, Ruby, and Python programmer. Yet Clojure is the first language I've used that...