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Products that do what Practice TypeScript does
Stop watching tutorials. Start practicing TypeScript
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Made an online tool for creating diagrams with TypeScript. I quite like it for thinking about how to shape my data, even if I end up using a different language in the end.
2023 · tsdiagram.com
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We've built this over the last few weeks to leverage vector search and LLMs (this is backed by GPT-3.5, though we're also testing Flan-T5) to answer question over large sets of documents with references. Currently, we've ingested the documentation for React and some key adjacent libraries (Redux, React-Redux, React-Router, MUI). This allows you to ask various natural language questions and the output is hopefully a relevant answer with code examples if applicable, while sourcing the original docs whenever possible. We're working on adding up more documentations and have more "general"…
2023 · docasker.com
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2018 · github.com
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I made an open source, MIT license Typescript library based on some of the latest research that generates prompt injection attacks. It is a super minimal/lightweight and designed to be super easy to use. Keen to hear your thoughts and please be responsible and only pen test systems where you have permission to pen test!
2025 · prompt-injector.blueprintlab.io
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I started writing this book 10 years ago in JavaScript, got through a few chapters (asymptotic notation, basic techniques, start of sorting), and then abandoned it. Recently I picked it back up, converted everything to TypeScript, and used AI (Zenflow [1] + Claude Opus 4.6) to complete the remaining chapters. I provided the structure, direction, and initial chapters; the AI generated the bulk of the remaining content under a spec-driven workflow. The book covers roughly a first 1-2 year CS curriculum: sorting, dynamic programming, graph algorithms, trees, heaps, hash tables, and more. All…
Mar 2026 · amoilanen.github.io
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2015 · github.com
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Today I am introducing HN to my sideproject 'testeranto'. It is a test framework for TS projects which leverages Aider to automatically fix broken tests. tl;dr: https://www.youtube.com/watch?v=WvU5xMqGi6Q
2025 · npmjs.com
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2017 · github.com
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A free, in-browser Jupyter-style notebook for TypeScript. It supports npm installs, network requests, and more—no signup or setup required. Why I Built It I wanted a simple way to test npm packages, experiment with TypeScript, and work on ideas like prompt engineering without heavy setup or local tools. Features - npm Integration: Install and use packages instantly. - Network Requests: Test APIs right in the notebook. - TypeScript Playground: Experiment, debug, and share code. It’s ideal for developers, educators, and anyone wanting a TypeScript scratch pad. Give it a try at…
2025 · typescriptnotebook.com
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2025 · github.com
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Hey HN! I've been doing a lot of work with the TypeScript Compiler API[1] recently as part of my work on Preview.js[2], an IDE extension that lets you preview React/Solid/Vue components. One thing I noticed is that even with great autocomplete and type validation, creating/editing JS values that match a given TypeScript type can require a lot of typing. This is especially the case in Preview.js, where you can edit the props you pass to the component you're previewing in the bottom right panel. For example, quickly switching between different variants of a union type can be a…
2022 · tseditor.fwouts.com
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2020 · github.com
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2019 · npmjs.com
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Hello everyone, For the past several months, I have been building multiple React/TailwindCSS components for my projects. I have decided to bundle and document them so that I can share them with the community. The entire UI kit is written in Typescript on top of the class-variance-authority library. Although I am already using these components in production, the project is still in beta since it lacks a full test suite and dark mode. Please feel free to take a look and provide feedback if you have a moment to spare. Thank you!
2023 · rewind-ui.dev
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Next.js has APIs to read and update search params (the /?foo=bar part of the URL), but they lack type-safety for consistent keys and proper parsing/serializing of JS data types. I found myself repeatedly building the same custom hook to get a React.useState-like approach. In 2021, I published it to NPM and then forgot about it. Since then, the `nuqs` package has gained popularity and is now used by companies like Vercel, Auth.js, Gitbook, and Midday.ai, with 200K weekly downloads. It's been fun building this as a side project and automating as much as possible to ensure a…
2024 · nuqs.47ng.com
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2016 · github.com
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2025 · gist.github.com
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