REST API Design Best Practices Handbook – How to Build a REST API with JavaScript, Node.js, and Express.js
By Jean-Marc Möckel I've created and consumed many API's over the past few years. During that time, I've come across good and bad practices and have experienced nasty situations when consuming and building API's. But there also have been great moments. There are helpful articles online which present many best practices, but many of them lack some practicality in my opinion. Knowing the theory with
Developers are increasingly relying on AI coding assistants to accelerate our daily workflows. These tools can autocomplete functions, suggest bug fixes, and even generate entire modules or MVPs. Yet, as many of us have learned, the quality of the AI’s output depends largely on the quality of the prompt you provide. In other words, prompt engineering has become an essential skill. A poorly phrased
This post is about why we need a coroutine package for Go, and what it would look like. But first, what are coroutines? Every programmer today is familiar with function calls (subroutines): F calls G, which stops F and runs G. G does its work, potentially calling and waiting for other functions, and eventually returns. When G returns, G is gone and F continues running. In this pattern, only one fu
Today we’re excited to announce the release of TypeScript 5.2! If you’re not familiar with TypeScript, it’s a language that builds on top of JavaScript by making it possible to declare and describe types. Writing types in our code allows us to explain intent and have other tools check our code to catch mistakes like typos, issues with null and undefined, and more. Types also power TypeScript’s edi
I don't build systems. I imagine them, then write them. …that were written in a military training camp and accidentally grew to 5k words. I am writing this on my phone, in a barrack that houses some 200+ of my brothers-in-arms in the Ukrainian army’s training camp; I use short periods of rest between training, mostly at night and on Sundays. TBH, since joining the army, I didn’t expect to have tim
AST vs. Bytecode: Interpreters in the Age of Meta-Compilation
233 AST vs. Bytecode: Interpreters in the Age of Meta-Compilation OCTAVE LAROSE, University of Kent, UK SOPHIE KALEBA, University of Kent, UK HUMPHREY BURCHELL, University of Kent, UK STEFAN MARR, University of Kent, UK Thanks to partial evaluation and meta-tracing, it became practical to build language implementations that reach state-of-the-art peak performance by implementing only an interprete
Today we’re excited to announce our Release Candidate of TypeScript 5.2! Between now and the stable release of TypeScript 5.2, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or through npm with the following command: npm install -D typescript@rc Here’s a quick list of what’s new in TypeScript 5.2! using Declarations and Explic
Wasm core dumps and debugging Rust in Cloudflare Workers
Wasm core dumps and debugging Rust in Cloudflare Workers2023-08-14 A clear sign of maturing for any new programming language or environment is how easy and efficient debugging them is. Programming, like any other complex task, involves various challenges and potential pitfalls. Logic errors, off-by-ones, null pointer dereferences, and memory leaks are some examples of things that can make software
How Much Memory Do You Need to Run 1 Million Concurrent Tasks? | Piotr Kołaczkowski
In this blog post, I delve into the comparison of memory consumption between asynchronous and multi-threaded programming across popular languages like Rust, Go, Java, C#, Python, Node.js and Elixir. Some time ago I had to compare performance of a few computer programs designed to handle a large number of network connections. I saw huge differences in memory consumption of those programs, even exce
Tier 4 Support § Support for these targets is entirely experimental. If this target is provided by LLVM, LLVM may have the target as an experimental target, which means that you need to use Zig-provided binaries for the target to be available, or build LLVM from source with special configure flags. zig targets will display the target if it is available. This target may be considered deprecated by
Tier 4 Support § Support for these targets is entirely experimental. If this target is provided by LLVM, LLVM may have the target as an experimental target, which means that you need to use Zig-provided binaries for the target to be available, or build LLVM from source with special configure flags. zig targets will display the target if it is available. This target may be considered deprecated by
11th March 2025 Online discussions about using Large Language Models to help write code inevitably produce comments from developers who’s experiences have been disappointing. They often ask what they’re doing wrong—how come some people are reporting such great results when their own experiments have proved lacking? Using LLMs to write code is difficult and unintuitive. It takes significant effort
If you are a Rubyist, you’ve likely been writing # frozen_string_literal: true at the top of most of your Ruby source code files, or at the very least, that you’ve seen it in some other projects. Based on informal discussions at conferences and online, it seems that what this magic comment really is about is not always well understood, so I figured it would be worth talking about why it’s there, w
Today we are excited to announce the availability of TypeScript 5.2 Beta. To get started using the beta, you can get it through NuGet, or through npm with the following command: npm install -D typescript@beta Here’s a quick list of what’s new in TypeScript 5.2! using Declarations and Explicit Resource Management Decorator Metadata Named and Anonymous Tuple Elements Easier Method Usage for Unions o
Update 1.60.1: The update addresses these issues. Update 1.60.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the August 2021 release of Visual Studio Code. There are many updates in this version that we hope you will like, some of the key highlights include: Automatic language detection - Programming l
はじめに お疲れ様です。矢儀 @yuki_ink です。 こちらのAWS公式ハンズオンをやってみました。 ECSとFargate/EC2を利用した環境構築から、CI/CDパイプラインを利用したデプロイまで、一通り体験できる素晴らしいハンズオンでした。 次のようなみなさんにおすすめです。 ECSを知識として知ってはいるが、実際に触ったことがない コンテナの何が優れているのか、実感を持っては理解できない CI/CDパイプラインでコンテナをデプロイしてみたい ハンズオンで構築する環境の構成イメージはこちら。 1. VS Code Serverの構築 このハンズオンでは、開発環境として Visual Studio Code Server (VS Code Server) を利用するとのことで、まず、CloudFormationでVS Code Serverを構築していきます。 ハンズオンページの
Exactly ten years ago today, we published "Why We Created Julia", introducing the Julia project to the world. At this point, we have moved well past the ambitious goals set out in the original blog post. Julia is now used by hundreds of thousands of people. It is taught at hundreds of universities and entire companies are being formed that build their software stacks on Julia. From personalized me
I’m excited to announce the project I’ve been working on for the last year and a half: Game Bub, an open-source FPGA based retro emulation handheld, with support for Game Boy, Game Boy Color, and Game Boy Advance games. May 2025 Update: Want to buy a prebuilt Game Bub? I’m launching a crowdfunding campaign on Crowd Supply! Sign up to be notified when the campaign goes live. Play Video: Game Bub ca
Try Mastering Emacs for free! Are you struggling with the basics? Have you mastered movement and editing yet? When you have read Mastering Emacs you will understand Emacs. It’s that time again: there’s a new major version of Emacs and, with it, a treasure trove of new features and changes. Notable features include the formal inclusion of native compilation, a technique that will greatly speed up y
For almost a complete decade—starting with discovering Haskell in about 2009 and right up until switching to a job where I used primarily Ruby and C++ in about 2019—I would have called myself first and foremost a Haskell programmer. Not necessarily a dogmatic Haskeller! I was—and still am—proudly a polyglot who bounces between languages depending on the needs of the project. However, Haskell was m
Physical Like many of you, I've got hardware on my desk that's sending UDP packets, and the time has come to take a closer look at them. Most "low-level" networking tutorials will bottom out somewhere at "use tcpdump to see raw packets". We'll be starting a bit lower in the stack; specifically, here: This is a high-speed active differential probe soldered to an Oxide Computer Company rack switch.
Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Update 1.72.1: The update addresses these security issues. Update 1.72.2: The update addresses these issues. Welcome to the September 2022 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Tool bar customization - Hide/show
An AI-native software engineer is one who deeply integrates AI into their daily workflow, treating it as a partner to amplify their abilities. This requires a fundamental mindset shift. Instead of thinking “AI might replace me” an AI-native engineer asks for every task: “Could AI help me do this faster, better, or differently?”. The mindset is optimistic and proactive - you see AI as a multiplier
Temporal Python SDK: A durable, distributed asyncio event loop We are excited about the GA release of the Temporal Python SDK. Python is now a fully-supported workflow language in Temporal, and our use of native asyncio constructs makes it a perfect fit for Python developers looking to write durable workflows. Here are some links to read more about Temporal Python: Repository Application Developme
Join a VS Code Dev Days event near you to learn about AI-assisted development in VS Code. August 16, 2022 by Matt Bierner, @MattBierner Markdown support was the first feature I took ownership of when I joined Visual Studio Code back in 2016. Wow, has it really been six years? It was a great match though. I've worked with Markdown long enough that I often find myself hopefully typing backticks and
tl;dr: If in doubt, prefer to use zswap. Only use zram if you have a highly specific reason to. In terms of architecture: zswap sits in front of your disk swap, compresses pages in RAM, and automatically tiers cold data to disk. It integrates directly with the kernel's memory management and distributes pressure gracefully. zram is a compressed RAM block device with a hard capacity limit. When you
Python behind the scenes #12: how async/await works in Python
Mark functions as async. Call them with await. All of a sudden, your program becomes asynchronous – it can do useful things while it waits for other things, such as I/O operations, to complete. Code written in the async/await style looks like regular synchronous code but works very differently. To understand how it works, one should be familiar with many non-trivial concepts including concurrency,
Web scraping, or crawling, is the process of fetching data from a third-party website by downloading and parsing the HTML code to extract the data you need. "But why don't you use the API for this?" Not every website offers an API, and those that do might not expose all the information you need. Therefore, scraping often becomes the only viable solution to extract website data. There are numerous
Python Interview Questions
Here is a list of common Python interview questions with detailed answers to help you prepare for the interview as a Python developer. Python, with its versatile use cases and straightforward syntax, has seen its popularity growing continuously in software development, data science, artificial intelligence, and many other fields. As such, interviews for Python-related positions are designed not on
Django for Startup Founders: A better software architecture for SaaS startups and consumer apps
In an ideal world, startups would be easy. We'd run our idea by some potential customers, build the product, and then immediately ride that sweet exponential growth curve off into early retirement. Of course it doesn't actually work like that. Not even a little. In real life, even startups that go on to become billion-dollar companies typically go through phases like: Having little or no growth fo
[Simon Tatham, initial version 2023-09-01, last updated 2025-03-25] [Coroutines trilogy: C preprocessor | C++20 native | general philosophy ] Introduction Why I’m so enthusiastic about coroutines The objective view: what makes them useful? Versus explicit state machines Versus conventional threads The subjective view: why do I like them so much? “Teach the student when the student is ready” They s
Java Interview Questions
Java remains one of the most common and popular programming languages in the world because of its strong features. Therefore, it’s no surprise that good Java programmers are very much sought after by almost all organizations across the world – be it startups or large multinational corporations. Considering the above, we created a list of common job interview questions about Java programming with d
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The Prompt Engineering Playbook for Programmers
research!rsc: Coroutines for Go
Announcing TypeScript 5.2 - TypeScript
A few words on Ruby's type annotations state
Announcing TypeScript 5.2 RC - TypeScript
0.8.0 Release Notes ⚡ The Zig Programming Language
0.10.0 Release Notes ⚡ The Zig Programming Language
Here’s how I use LLMs to help me write code
Frozen String Literals: Past, Present, Future?
Announcing TypeScript 5.2 Beta - TypeScript
August 2021 (version 1.60)
AWS公式のECSハンズオンがとても良かった!! - Qiita
Why We Use Julia, 10 Years Later
Game Bub: open-source FPGA retro emulation handheld
What's New in Emacs 28.1?
Leaving Haskell behind
From Oscilloscope to Wireshark - A UDP Story
September 2022 (version 1.72)
The AI-Native Software Engineer
Temporal Python SDK | Durable Asyncio Event Loop
Introducing the Markdown Language Server
Debunking zswap and zram myths
Web Scraping without getting blocked (2025 Solutions)
Philosophy of coroutines