Easily the biggest question we get asked is something like: How is Remix different from Next.js? It appears we have to answer this question! We'd like to address it directly and without drama. If you're a fan of Remix and want to start tweeting smug reactions to this article, we kindly ask that you drop the smugness before hitting the tweet button 🤗. A rising tide lifts all boats. We've been frie
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
Couple of weeks ago when I was publishing The Hidden Cost of URL Design I needed to add SQL syntax highlighting. I headed to PrismJS website trying to remember if it should be added as a plugin or what. I was overwhelmed with the amount of options in the download page so I headed back to my code. I checked the file for PrismJS and at the top of the file, I found a comment containing a URL: /* http
IDEs CLion DataGrip DataSpell Fleet GoLand IntelliJ IDEA PhpStorm PyCharm RustRover Rider RubyMine WebStorm Plugins & Services Big Data Tools Code With Me JetBrains Platform Scala Toolbox App Writerside JetBrains AI Grazie Junie JetBrains for Data Kineto Team Tools Datalore Space TeamCity Upsource YouTrack Hub Qodana CodeCanvas Matter .NET & Visual Studio .NET Tools ReSharper C++ Languages & Frame
How modern browsers work
Note: For those eager to dive deep into how browsers work, an excellent resource is Browser Engineering by Pavel Panchekha and Chris Harrelson (available at browser.engineering). Please do check it out. This article is an overview of how browsers work. Web developers often treat the browser as a black box that magically transforms HTML, CSS, and JavaScript into interactive web applications. In tru
One of the most impactful things we’ve worked on in TypeScript 5.0 isn’t a feature, a bug fix, or a data structure optimization. Instead, it’s an infrastructure change. In TypeScript 5.0, we restructured our entire codebase to use ECMAScript modules, and switched to a newer emit target. What to Know Now, before we dive in, we want to set expectations. It’s good to know what this does and doesn’t m
We are excited to announce the release of the new version of Prettier! We have made the migration to using ECMAScript Modules for all our source code. This change has significantly improved the development experience for the Prettier team. Please rest assured that when using Prettier as a library, you can still use it as CommonJS as well. This update comes with several breaking changes. One notabl
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
Biome v2—codename: Biotype
We are happy to announce that Biome v2 is officially out! 🍾 Biome v2—codename: Biotype, the first JavaScript and TypeScript linter that provides type-aware linting rules that doesn’t rely on the TypeScript compiler! This means that you can lint your project without necessarily installing the typescript package. With this release, the Core Contributors of the project want to show to the whole comm
Notable changes built-in .env file support Starting from Node.js 20.6.0, Node.js supports .env files for configuring environment variables. Your configuration file should follow the INI file format, with each line containing a key-value pair for an environment variable. To initialize your Node.js application with predefined configurations, use the following CLI command: node --env-file=config.env
9 Times the Web Platform Was Influenced by Libraries | Jad Joubran
The web platform didn't invent most of its best APIs. It caught up to them. Libraries did the R&D work in production. They got tested by thousands of developers across thousands of codebases, which is the kind of feedback you can't simulate. They got bug reports. They iterated. And, the patterns that survived eventually became part of the platform itself. If you've been writing JavaScript for a wh
All JavaScript and TypeScript Features of the last 3 years
TypeScript as envisioned by Stable DiffusionThis article goes through almost all of the changes of the last 3 years (and some from earlier) in JavaScript / ECMAScript and TypeScript . Not all of the following features will be relevant to you or even practical, but they should instead serve to show what’s possible and to deepen your understanding of these languages. There are a lot of TypeScript fe
The product https://joinmastodon.org Mastodon is a free, open-source social network server based on ActivityPub where users can follow friends and discover new ones. On Mastodon, users can publish anything they want: links, pictures, text, and video. All Mastodon servers are interoperable as a federated network. Open source The project is open source at https://github.com/mastodon/mastodon License
2025-05-06, Version 24.0.0 (Current), @RafaelGSS and @juanarbol We’re excited to announce the release of Node.js 24! This release brings several significant updates, including the upgrade of the V8 JavaScript engine to version 13.6 and npm to version 11. Starting with Node.js 24, support for MSVC has been removed, and ClangCL is now required to compile Node.js on Windows. The AsyncLocalStorage API
How we made Vite 4.3 faaaaster 🚀 Just like @sapphi-red said, Vite 4.3 has made amazing performance improvements over Vite 4.2. These benchmarks based on a large project with 1000 react components. And these react components were transformed by vite-plugin-react and vite-plugin-react-swc. As a new rookie on the team, I am so glad that I've joined this party. To let more people know what we did to
Designing a Dataflow Editor With TypeScript and React | Protocol Labs Research
This is a design report – a story about the tradeoffs and challenges that we encountered while building a medium-complexity React component in TypeScript. These include state modeling (“making illegal states unrepresentable”) basic type-level programming in TypeScript DX patterns for generically typed React components DX patterns for reusable controlled components using a Redux-like action/dispatc
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
WebKit Features in Safari 17.2
ContentsHTMLCSSImages and videoJavaScriptWeb APIWeb AppsWebGLPrivacyWeb InspectorFixes for Interop 2023 and moreUpdating to Safari 17.2Feedback Web technology is constantly moving forward, with both big new features and small subtle adjustments. Nowadays, web developers expect web browsers to update multiple times a year, instead of the once or twice a year typical of the late 2000s — or the once
The Grug Brained Developer
The Grug Brained Developer A layman's guide to thinking like the self-aware smol brained Introduction this collection of thoughts on software development gathered by grug brain developer grug brain developer not so smart, but grug brain developer program many long year and learn some things although mostly still confused grug brain developer try collect learns into small, easily digestible and fun
Biome v2.4—Embedded Snippets, HTML Accessibility, and Better Framework Support
Biome v2.4 is the first minor release of the year! After more than ten patches from v2.3, today we bring to you a new version that contains many new features! Once you have upgraded to Biome v2.4.0, migrate your Biome configuration to the new version by running the migrate command: biome migrate --write Highlights Among all the features shipped in this release, here are the ones we think you’re go
Hey, I'm Fabio and I've been contracted by the Prettier team to speed up Prettier's command line interface (CLI). In this post we'll take a look at the optimizations I've discovered, the process that lead to finding them, some exciting numbers comparing the current CLI with the new one, and some guesses about what could be optimized next. Installation The new work-in-progress CLI for Prettier has
Blogged Answers: My Experience Modernizing Packages to ESM
Random musings on React, Redux, and more, by Redux maintainer Mark "acemarke" Erikson This is a post in the Blogged Answers series. Details on the painful experiences and hard-earned lessons I've learned migrating the Redux packages to ESM Table of Contents 🔗︎ Introduction Redux Packages Background Packages and Configurations Issue History Early Attempts Migrating to Vitest Initial Alpha Testing
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
Against SQL
TLDR The relational model is great: A shared universal data model allows cooperation between programs written in many different languages, running on different machines and with different lifespans. Normalization allows updating data without worrying about forgetting to update derived data. Physical data independence allows changing data-structures and query plans without having to change all of y
Shai Hulud Strikes Again (v2)Another wave of Shai-Hulud campaign has hit npm with more than 500 packages and 700+ versions affected. Update: November 26, 2025 PostHog has published a detailed post mortem describing how one of its GitHub Actions workflows was abused as an initial access vector for Shai Hulud v2. An attacker briefly opened a pull request that modified a script executed via pull_requ
maml{ project: "MAML" tags: [ "minimal" "readable" ] # A simple nested object spec: { version: 1 author: "Anton Medvedev" } # Array of objects examples: [ { name: "JSON", born: 2001 } { name: "MAML", born: 2025 } ] notes: """ This is a multiline raw strings. Keeps formatting as-is. """ } Rationale JSON is the most popular data-interchange format. But it isn't a very good configuration language. M
--- name: skill-creator description: Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations. license: Complete terms in LICENSE.txt --- # Skill Creator This skill provides guidance for creating effective skills. ## About Skills S
How Functional Programming Shaped (and Twisted) Frontend Development A friend called me last week. Someone who’d built web applications back for a long time before moving exclusively to backend and infra work. He’d just opened a modern React codebase for the first time in over a decade. “What the hell is this?” he asked. “What are all these generated class names? Did we just… cancel the cascade? W
8.x バリデーション Laravel
イントロダクションIntroduction Laravelは、アプリケーションの受信データをバリデーションするために複数の異なるアプローチを提供します。すべての受信HTTPリクエストで使用可能なvalidateメソッドを使用するのがもっとも一般的です。しかし、バリデーションに対する他のアプローチについても説明します。Laravel provides several different approaches to validate your application's incoming data. It is most common to use the validate method available on all incoming HTTP requests. However, we will discuss other approaches to validation as well
Join a VS Code Dev Days event near you to learn about AI-assisted development in VS Code. Update 1.57.1: The update addresses these issues. The Workspace Trust feature addresses CVE-2021-34529. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the May 2021 release of Visual Studio Code. There are a number of updates in this version that we ho
JavaScriptのシャローコピーとディープコピー詳細解説：実践的な使い方と注意点 - iimon TECH BLOG
はじめに シャローコピーとディープコピーの基礎 オブジェクトの参照の仕組み シャローコピーとディープコピーの違い シャローコピーの3つの方法 それぞれの特徴 Object.assign()が配列に適さない理由 疎配列（sparse array）の扱い 配列メソッドの継承問題 使い分けの指針 ディープコピー ディープコピーの4つの方法 使い分けの指針 注意点とベストプラクティス シャローコピーで十分な場合 ディープコピーが必要な場合 まとめ おわりに 参考記事 はじめに こんにちは、株式会社iimonでフロントエンドエンジニアをしているnkmです！ 本記事はiimonアドベントカレンダー2日目の記事となります。 今回は、以下について実践的な例を交えながら解説していきます！ ・シャローコピーとディープコピーの基礎 ・シャローコピーとディープコピーの違い ・シャローコピーの３つの方法、使い分け
Introduction: These Aren’t the JSONs You’re Looking For JSON (JavaScript Object Notation) was designed as a simple, lightweight, and human-readable data interchange format, often positioned as a more accessible alternative to XML. It has become the de facto standard for web APIs and system integration. However, while the specification itself is straightforward, different programming languages and
OAuth 2.0 Simplified | What is Oauth and How Does it Work | FusionAuth | FusionAuth Docs
OAuth 2.0 Simplified | What is Oauth and How Does it Work | FusionAuthBy Brian Pontarelli, Ahmed Hashesh and Dan Moore I know what you are thinking, is this really another guide to OAuth 2.0? Well, yes and no. This guide is different from most of the others out there because it covers all of the ways that we actually use OAuth. It also covers all of the details you need to be an OAuth expert witho
From XML to JSON to CBOR - The CBOR, dCBOR, and Gordian Envelope Book
Press ← or → to navigate between chapters Press S or / to search in the book Press ? to show this help Press Esc to hide this help From XML to JSON to CBOR A Lingua Franca for Data? In modern computing, data exchange is foundational to everything from web browsing to microservices and IoT devices. The ability for different systems to represent, share, and interpret structured information drives ou
Here is a list of common JavaScript interview questions with detailed answers to help you prepare for the interview as a JavaScript developer. JavaScript continues to be a cornerstone of web development, powering dynamic and interactive experiences across the web. As the language evolves, so does the complexity and scope of interview questions for JavaScript developers. Whether you’re a fresher de
Update 1.88.1: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the March 2024 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Apply custom editor labels - Distinguish between editors with same file names. Locked scrolling -
Casual Parsing in JavaScript August 16, 2021 Over the last year and a half I've gotten really into writing parsers and parser-adjacent things like interpreters, transpilers, etc. I've done most of these projects in JavaScript, and I've settled into a nice little pattern that I re-use across projects. I wanted to share it because I think it's neat, and it's brought me joy, and it could be an intere
Preamble There exists a peculiar amnesia in software engineering regarding XML. Mention it in most circles and you will receive knowing smiles, dismissive waves, the sort of patronizing acknowledgment reserved for technologies deemed passé. "Oh, XML," they say, as if the very syllables carry the weight of obsolescence. "We use JSON now. Much cleaner." This is nonsense. XML was not abandoned becaus
I've been using Nim for about 1-2 years now, and I believe the language is undervalued. It's not perfect, of course, but it's pleasant to write and read. My personal website uses Nim. After reading a recent article on Nim ("Why Nim") and the associated HN comments, it's clear that comments and some information about Nim are misleading and outdated. Since Nim 2, a tracing Garbage Collector is not t
はじめに 結論 オブジェクトのメモリ参照イメージ シャローコピー シャローコピーの使用方法 ディープコピー ディープコピーの使用方法 最後に 参考記事 はじめに こんにちは、株式会社iimonでエンジニアをしている中村です。 業務では、主にフロントエンドを担当させていただいています。 今回は「シャローコピーとディープコピーの違い」について聞いたことはありますが、よくわかっていなかったので調べてみました。 結論 シャローコピーとディープコピーは、オブジェクトのコピーを作成する二つの異なる方法です。シャローコピーは参照アドレスのコピー、ディープコピーはオブジェクト自体のコピーのことを指します。 オブジェクトのメモリ参照イメージ そもそも、オブジェクトとは値を格納している場所（メモリ上のアドレス）を 格納します。 const Taro = {age: 20, job: "engineer"} 図
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Remix vs Next.js
The Prompt Engineering Playbook for Programmers
Your URL Is Your State
JavaScript Best Practices | The WebStorm Blog
TypeScript's Migration to Modules - TypeScript
Prettier 3.0: Hello, ECMAScript Modules! · Prettier
Node.js — Node.js 20.6.0 (Current)
Mastodon: Ruby on Rails Open Source Web App
Node.js — Node.js 24.0.0 (Current)
How we made Vite 4.3 faaaaster
How we made JSON.stringify more than twice as fast · V8
Prettier's CLI: A Performance Deep Dive · Prettier
Shai Hulud Strikes Again (v2) - Socket
MAML
prompts.chat - AI Prompts Community
How Functional Programming Shaped (and Twisted) Frontend Development
May 2021 (version 1.57)
JSON is not JSON Across Languages | Dochia CLI Blog
JavaScript Interview Questions
March 2024 (version 1.88)
Casual Parsing in JavaScript | Brandon's Website
The lost art of XML — mmagueta
A Review of Nim 2: The Good & Bad with Example Code
シャローコピーとディープコピーの違い - iimon TECH BLOG