// Good: choose between two options as appropriate (see below). import * as ng from '@angular/core'; import {Foo} from './foo'; // Only when needed: default imports. import Button from 'Button'; // Sometimes needed to import libraries for their side effects: import 'jasmine'; import '@polymer/paper-button'; Import paths TypeScript code must use paths to import other TypeScript code. Paths may be r
#Tools #Vim #MouselessA Vim Guide for Advanced UsersWelcome to the third part of this series aimed to help you unleash a power never seen on Earth using the Almighty Vim. We’ll see together in this article: Some nice keystrokes beginning with g.What ranges are and how to use them.The quickfix list and the location lists.The marvelous substitute command.The crazy useful :global (or :g) command.What
Today we’re excited to announce the release of TypeScript 5.0! This release brings many new features, while aiming to make TypeScript smaller, simpler, and faster. We’ve implemented the new decorators standard, added functionality to better support ESM projects in Node and bundlers, provided new ways for library authors to control generic inference, expanded our JSDoc functionality, simplified con
Next.js 13 vs Remix: An In-depth case studyLast updated on 29 Sep 2023 by Prateek Surana • - min read When it comes to building web applications, React has been at the forefront for a while now, and its adoption continues to grow. Among the most common approaches to building web applications with React, Next.js stands out as one of the most preferred options. Next.js has also been in the limel
TL;DR; We are changing std::sort in LLVM’s libcxx. That’s a long story of what it took us to get there and all possible consequences, bugs you might encounter with examples from open source. We provide some benchmarks, perspective, why we did this in the first place and what it cost us with exciting ideas from Hyrum’s Law to reinforcement learning. All changes went into open source and thus I can
Hypershell: A Type-Level DSL for Shell-Scripting in Rust | Context-Generic Programming
Discuss on Reddit, Lobsters, and Hacker News. Summary I am thrilled to introduce Hypershell, a modular, type-level domain-specific language (DSL) for writing shell-script-like programs in Rust. Hypershell is powered by context-generic programming (CGP), which makes it possible for users to extend or modify both the language syntax and semantics. Table of Contents Estimated reading time: 1~2 hours
Today we’re excited to announce our beta release of TypeScript 5.0! This release brings many new features, while aiming to make TypeScript, smaller, simpler, and faster. We’ve implemented the new decorators standard, functionality to better support ESM projects in Node and bundlers, new ways for library authors to control generic inference, expanded our JSDoc functionality, simplified configuratio
What's New In DevTools (Chrome 90) | Blog | Chrome for Developers
New CSS flexbox debugging tools DevTools now has dedicated CSS flexbox debugging tools! When an HTML element on your page has display: flex or display: inline-flex applied to it, you can see a flex badge next to it in the Elements panel. Click the badge to toggle the display of a flex overlay on the page. In the Styles pane, you can click on the new icon next to the display: flex or display: inlin
WebKit Features in Safari 17.4
ContentsArchitectural improvementsWeb AppsForm elementsCSSWeb APIJavaScriptMediaSVGWebGLWeb AssemblyWeb InspectorChanges to SafariSafari ExtensionsWeb AuthenticationBug Fixes and moreUpdating to Safari 17.4Feedback Just like Safari 15.4 and Safari 16.4, this March’s release of Safari 17.4 is a significant one for web developers. We’re proud to announce another 46 features and 146 bug fixes. You ca
When people say “debuggers are useless and using logging and unit-tests is much better,” I suspect many of them think that debuggers can only put breakpoints on certain lines, step-step-step through the code, and check variable values. While any reasonable debugger can indeed do all of that, it’s only the tip of the iceberg. Think about it; we could already step through the code 40 years ago, sure
Today we’re excited to announce our Release Candidate of TypeScript 5.0! Between now and the stable release of TypeScript 5.0, we expect no further changes apart from critical bug fixes. This release brings many new features, while aiming to make TypeScript, smaller, simpler, and faster. We’ve implemented the new decorators standard, functionality to better support ESM projects in Node and bundler
No trial. No credit card required. Just your GitHub account. Several weeks ago, the .NET Blog featured a post What is .NET, and why should you choose it?. It provided a high-level overview of the platform, summarizing various components and design decisions, and promising more in-depth posts on the covered areas. This post is the first such follow-up, deep-diving into the history leading to, the d
Join a VS Code Dev Days event near you to learn about AI-assisted development in VS Code. Update 1.53.1: The update addresses these security issues. Update 1.53.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Intel | Linux: deb rpm tarball Arm snap Welcome to the January 2021 release of Visual Studio Code. There are a number of updates in this version that we hope you wi
I was recently made maintainer of the json gem, and aside from fixing some old bugs, I focused quite a bit on its performance, so that it is now the fastest JSON parser and generator for Ruby on most benchmarks. Contrary to what one might think, there wasn’t any black magic or deep knowledge involved. Most of the performance patches I applied were fairly simple optimizations driven by profiling. A
Conditional CSS
Do you want to master CSS layouts? I'm building a new course. Learn more I like to think of CSS as a conditional design language. Over the years, CSS was known as a way to style web pages. Now, however, CSS has evolved a lot to the point you can see conditional rules. The interesting bit is that those CSS rules aren’t direct (i.e: there is still no if/else in CSS), but the way features in CSS work
Introducing Claude 4 in Amazon Bedrock, the most powerful models for coding from Anthropic | Amazon Web Services
AWS News Blog Introducing Claude 4 in Amazon Bedrock, the most powerful models for coding from Anthropic Anthropic launched the next generation of Claude models today—Opus 4 and Sonnet 4—designed for coding, advanced reasoning, and the support of the next generation of capable, autonomous AI agents. Both models are now generally available in Amazon Bedrock, giving developers immediate access to bo
No trial. No credit card required. Just your GitHub account. A year ago, I published Performance Improvements in .NET 6, following on the heels of similar posts for .NET 5, .NET Core 3.0, .NET Core 2.1, and .NET Core 2.0. I enjoy writing these posts and love reading developers’ responses to them. One comment in particular last year resonated with me. The commenter cited the Die Hard movie quote, “
OpenBSD is an operating system that's famous for its focus on security. Unfortunately, OpenBSD leader Theo states that there are only 7000 users of OpenBSD. So it's a very small but elite group, that wields a disproportionate influence; since we hear all the time about the awesome security features these guys get to use, even though we usually can't use them ourselves. Pledge is like the forbidden
Update 1.78.1: The update addresses this security issue. Update 1.78.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the April 2023 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Accessibility improvements - Better scre
Jun 6, 2023 by Patrick Angle, Jean-Yves Avenard, Marcos Caceres, Ada Rose Cannon, Eric Carlson, Garrett Davidson, Jon Davis, Karl Dubost, Brady Eidson, Matthew Finkel, Simon Fraser, Brent Fulgham, Rachel Ginsberg, David Johnson, Anne van Kesteren, Mark Lam, Sihui Liu, Justin Michaud, Jer Noble, Tim Nguyen, Ben Nham, Richard Robinson, Michael Saboff, Alexey Shvaika, Jen Simmons, Sam Sneddon, Brando
I want to write a post about Pitchfork, explaining where it comes from, why it is like it is, and how I see its future. But before I can get to that, I think I need to share my mental model on a few things, in this case, Ruby’s GVL. For quite a long time, it has been said that Rails applications are mostly IO-bound, hence Ruby’s GVL isn’t that big of a deal and that has influenced the design of so
What's New in DevTools (Chrome 117) | Blog | Chrome for Developers
Network panel improvements Override web content locally even faster The local overrides feature is now streamlined, so you can easily mock response headers and web content of remote resources from the Network panel without access to them. To override web content, open the Network panel, right-click a request, and select Override content. If you have local overrides set up but disabled, DevTools en
JSON.stringify is a core JavaScript function for serializing data. Its performance directly affects common operations across the web, from serializing data for a network request to saving data to localStorage. A faster JSON.stringify translates to quicker page interactions and more responsive applications. That’s why we’re excited to share that a recent engineering effort has made JSON.stringify i
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
WebKit Features in Safari 18.4
Mar 31, 2025 by Jen Simmons, Saron Yitbarek, Jon Davis, Razvan Caliman, Karl Dubost, Brady Eidson, Elika Etemad, Youenn Fablet, Matthew Finkel, Simon Fraser, Timothy Hatcher, David Johnson, Anne van Kesteren, Daniel Liu, Keith Miller, Rupin Mittal, Tim Nguyen, Pascoe, Abrar Rahman Protyasha, Richard Robinson, Lily Spiniolas, Brandon Stewart, John Wilander and Luming Yin ContentsDeclarative Web Pus
Manuel Cerón
Last year I finally decided to learn some Rust. The official book by Steve Klabnik and Carol Nichols is excellent, but even after reading it and working on some small code exercises, I felt that I needed more to really understand the language. I wanted to work on a small project to get some hands-on experience, but most of my ideas didn’t feel very well suited for Rust. Then I started reading the
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
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
Rust for Secure IoT Applications: Why C Is Getting Rusty
www.embedded-world.eu Rust for Secure IoT Applications Why C Is Getting Rusty Mario Noseda, Fabian Frei, Andreas Rüst, Simon Künzli Zurich University of Applied Sciences (ZHAW) Institute of Embedded Systems (InES) Winterthur, Switzerland mario.noseda@zhaw.ch, fabian.frei@zhaw.ch, andreas.ruest@zhaw.ch, simon.kuenzli@zhaw.ch Abstract— Memory corruption is still the most used type of exploit in toda
Introduction Dusting off a few new (old) vulns Have you ever been casually perusing the source code of the Linux kernel and thought to yourself "Wait a minute, that can’t be right"? That’s the position we found ourselves in when we found three bugs in a forgotten corner of the mainline Linux kernel that turned out to be about 15 years old. Unlike most things that we find gathering dust, these bugs
A professional programmer delivers value through the authoring and maintaining of software that solves problems. (There are other important ways for professional programmers to deliver value but this post is about programming.) Programmers rely on various tools to author software. Arguably the most important and consequential choice of tool is the programming language. In this post, I will articul
// Good: choose between two options as appropriate (see below). import * as ng from '@angular/core'; import {Foo} from './foo'; // Only when needed: default imports. import Button from 'Button'; // Sometimes needed to import libraries for their side effects: import 'jasmine'; import '@polymer/paper-button'; Import paths TypeScript code must use paths to import other TypeScript code. Paths may be r
The simplicity of Prolog
Back to homepage Nowadays the most popular programming languages are Python, Javascript, Java, C++, C#, Kotlin and Ruby, and the average programmer is probably familiar with one or more of these languages. It's relatively easy to switch from one to another (barring any framework specific knowledge that may be needed), since they are all imperative (and for the most part object-oriented) languages,
What's new in Swift 5.5? Async/await, actors, throwing properties, and more! Swift 5.5 comes with a massive set of improvements – async/await, actors, throwing properties, and many more. For the first time it’s probably easier to ask “what isn’t new in Swift 5.5” because so much is changing. In this article I’m going to walk through each of the changes with code samples, so you can see how each of
What's New in DevTools (Chrome 111) | Blog | Chrome for Developers
Debugging HD color with the Styles pane New CSS color types and spaces are coming to the web! It is equally exciting that DevTools introduced new tools to help developers create, convert and debug High Definition color. The Styles pane now supports 12 new color spaces and 7 new gamuts as outlined in the CSS Color Level 4 specification. See High Definition CSS Color Guide for a comprehensive unders
Godot 4.0 sets sail: All aboard for new horizons – Godot Engine
After 3+ years of breaking and rebuilding from the ground up, a complete core overhaul and a full engine rewrite, through 17 alphas, 17 betas and 6 release candidates, we’re thrilled to say: Welcome to the start of Godot 4! Time to reach new heights together. We’re extremely excited but most of all, we’re humbled by the experience. We believe that this project is one of the most incredible example
JupyterLab Changelog — JupyterLab 4.5.0a3 documentation
JupyterLab Changelog# v4.4# JupyterLab 4.4 includes a number of new features (described below), bug fixes, and enhancements. This release is compatible with extensions supporting JupyterLab 4.0. Extension authors are encouraged to consult the Extension Migration Guide which lists deprecations and changes to the public API. Code console improvements# The code console prompt can now be positioned on
xv6: a simple, Unix-like teaching operating system Russ Cox Frans Kaashoek Robert Morris September 6, 2021 2 Contents 1 Operating system interfaces 9 1.1 Processes and memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.2 I/O and File descriptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.3 Pipes . . . . . . . . . . . . . . . . . . . . . . . . . .
Hello! I'm kicking off another article series about the internals of PostgreSQL. This one will focus on query planning and execution mechanics. This series will cover: Query execution stages (this article) Statistics Sequential scan Index scan Nested-loop join Hash join Merge join This article borrows from our course QPT Query Optimization (available in English soon), but focuses mostly on the int
A History of Clojure
71 A History of Clojure RICH HICKEY, Cognitect, Inc., USA Shepherd: Mira Mezini, Technische Universität Darmstadt, Germany Clojure was designed to be a general-purpose, practical functional language, suitable for use by professionals wherever its host language, e.g., Java, would be. Initially designed in 2005 and released in 2007, Clojure is a dialect of Lisp, but is not a direct descendant of any
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Google TypeScript Style Guide
A Vim Guide for Advanced Users
Announcing TypeScript 5.0 - TypeScript
Next.js 13 vs Remix: An In-depth case study
Changing std::sort at Google’s Scale and Beyond
Announcing TypeScript 5.0 Beta - TypeScript
What a good debugger can do 🔮
Announcing TypeScript 5.0 RC - TypeScript
How Async/Await Really Works in C# - .NET Blog
January 2021 (version 1.53)
Optimizing Ruby’s JSON, Part 1
Performance Improvements in .NET 7 - .NET Blog
Porting OpenBSD pledge() to Linux
April 2023 (version 1.78)
News from WWDC23: WebKit Features in Safari 17 beta
So You Want To Remove The GVL?
How we made JSON.stringify more than twice as fast · V8
0.10.0 Release Notes ⚡ The Zig Programming Language
Frozen String Literals: Past, Present, Future?
What's New in Emacs 28.1?
New Old Bugs in the Linux Kernel
Gregory Szorc's Digital Home | Rust is for Professionals
Google TypeScript Style Guide
What's new in Swift 5.5?
xv6: a simple, Unix-like teaching operating system
Queries in PostgreSQL. Query execution stages