Experiment: making TypeScript immutable-by-default
I like programming languages where variables are immutable by default. For example, in Rust, let declares an immutable variable and let mut declares a mutable one. I’ve long wanted this in other languages, like TypeScript, which is mutable by default—the opposite of what I want! I wondered: is it possible to make TypeScript values immutable by default? My goal was to do this purely with TypeScript
Type-safe Composable CSS
From simple UI styles to full Design Systems, write code using Styleframe’s powerful TypeScript CSS API. import { styleframe } from 'styleframe'; import { useColor } from '@styleframe/theme'; const s = styleframe(); const { variable, ref, selector } = s; const spacing = variable('spacing', '1rem'); const { colorPrimary } = useColor(s, { primary: '#318fa0', }); selector('.button', { backgroundColor
Moving off of TypeScript
We Love You, TypeScriptFor nearly five years now, Motion has operated in a large TypeScript monorepo. At its peak, it was roughly ~2.5 million lines of code after excluding comments, node_modules, etc. To manage this, we used Vercel’s rather excellent Turborepo build system. This is not a blog post hating on TypeScript — quite the opposite! Motion would likely not even have survived until today wi
Enable `--strict` by default · Issue #62333 · microsoft/TypeScript
Background Almost a decade ago, we began to add certain options beyond --noImplicitAny and --strictNullChecks. Flags like --strictFunctionTypes, --noImplicitThis, and --strictBindCallApply have been added to ensure most code is hardened against certain classes of type safety bugs. To avoid thinking about all the specific type-checking flags we recommended, we added the --strict flag as an easy way
Infrastructure as TypeScript
Infrastructure as TypeScript Deploy to Cloudflare, AWS, and more with pure TypeScript. Generate support for any API in minutes with AI. const database = await Database("my-database"); const website = await Worker("website", { bindings: { DB: database, }, }); const price = await Price("basic-license", { currency: "usd", unitAmount: 2999, // $29.99 product: "prod_xyz" }); const database = await Data
TypeHero
Connect, collaborate, and grow with a community of TypeScript developers. Elevate your skills through interactive coding challenges, discussions, and knowledge sharing
How we migrated our Rush.js monorepo to Node type stripping — Calm Blog
Introduction Sometimes an epiphany comes after years of hard work. Other times, it's more like an asteroid crashing into you from the cosmos. My epiphany came shortly after a coworker posted an article about Node type stripping, which is a way to skip transpilation and run TypeScript files natively in Node. We started chatting about the significant impact this change could have on developer produc
JavaScript/TypeScript実力強化書 | 技術評論社
概要 一気にJavaScript・TypeScriptのエキスパートへ！ Software Design本誌再編集シリーズ、今度はWeb開発者の必修科目であるJavaScriptとTypeScriptがテーマです。第一線のエンジニアが現場で培った、JavaScript・TypeScriptを最大活用する秘訣を伝授します。 第1章ではJavaScriptの歴史をさかのぼりつつ、基本的な仕様やコーディング作法を解説します。第2章でJavaScriptの関数について、関数のしくみ、引数、関数型プログラミングなどの観点で徹底的に解き明かします。第3章では、JavaScriptの非同期処理について、非同期処理そのものの変遷から、並行・並列処理の違い、Promiseやasync/await、AbortSignal/AsyncLocalStorageまで詳細に掘り下げます。第4章では、TypeScrip
tsx と Node.js Type Stripping の違い - mizdra's blog
tsx は TypeScript コードを事前トランスパイルすることなく、直接 Node.js で実行するためのツール。 https://github.com/privatenumber/tsx ところで最近の Node.js には Type Stripping という機能が入った。これを使うと、tsx なしで TypeScript コードを事前トランスパイルせずに実行できる。 https://nodejs.org/api/typescript.html#type-stripping 両者の違い 一見すると両者は機能的に同じものかのように思うけど、実は結構違いがある。 import specifier の指定方法が異なる 最も大きな違いは、「import specifier」の指定方法。import specifier というのは、以下の部分のこと。 import { add } './m
Oxlint Type-Aware Preview
We're thrilled to announce type-aware linting in oxlint! The long-awaited no-floating-promises and related rules are here. This preview release aims to engage with the community for collaboration and discussion by documenting our decision process and technical details. Quick Start If oxlint is already configured, install oxlint-tsgolint and run oxlint with the --type-aware flag: bashpnpm add -D
If I Wrote a Linter, Part 1: Architecture | Goldblog
This how I would architect a modern linter from scratch: focusing on built-in TypeScript support, a straightforward rule development experience, and deduplicating tooling. Today’s web linters are great. ESLint is robust and has a huge ecosystem of plugins and configs. Newer native speed linters such as Biome, deno lint, and Oxlint are fast and easy to set up with their own burgeoning ecosystems. I
Announcing TypeScript 5.9 - TypeScript
Today we are excited to announce the release of TypeScript 5.9! If you’re not familiar with TypeScript, it’s a language that builds on JavaScript by adding syntax for types. With types, TypeScript makes it possible to check your code to avoid bugs ahead of time. The TypeScript type-checker does all this, and is also the foundation of great tooling in your editor and elsewhere, making coding even e
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arktype/ark/attest at main · arktypeio/arktype
module: mark type stripping as stable by marco-ippolito · Pull Request #60600 · nodejs/node
Release v4.1.0 · colinhacks/zod
GitHub - JoshuaKGoldberg/flint: [Experimental] A fast, friendly linter. ❤️🔥![GitHub - JoshuaKGoldberg/flint: [Experimental] A fast, friendly linter. ❤️🔥](https://cdn-ak-scissors.b.st-hatena.com/image/square/7e6aa1ed20eae9b416598249f0a3fa9c96d2d4e8/height=288;version=1;width=512/https%3A%2F%2Fopengraph.githubassets.com%2F100d76a1634ae24591e613f2afa0a367476aea951fa8fff5aa9c458ae9534ad8%2FJoshuaKGoldberg%2Fflint)
GitHub - evan-liu/karabiner.ts: Write Karabiner-Elements configuration in TypeScript
Potential Public-Facing Go API for Embedding? · microsoft/typescript-go · Discussion #481
GitHub - web-infra-dev/rslint: 🚀 Go Faster. Go Typed
🐼 Panda v1 🎊 · chakra-ui/panda · Discussion #3321