Hey 👋 Twitter is the home of my content, so follow along for: 🧑‍💻 Web dev, functional programming & testing in #Typescript 🤩 Getting into / maintaining open source software 💸 Tech entrepreneurship 📢 Building in public 🧑‍🚀 Career advice Wanna chat? My DMs are always open 😊

Is your Typescript project using strings everywhere? Probably. @mattphillipsio explains why this isn’t such a great idea and how you can make your app even more type safe. Typescript: from stringly typed to strongly typed. https://t.co/joUoYucktL

Haskell proves you don't need null at a high-level. Rust proves you don't need null at a low-level. Why are you still using null, again??

An interesting and well-written post with some compliments and concerns about React Server Components (and some other gripes about React in general): https://t.co/NA7LsqaI2P

This is a little reason why I dislike Next's API choices. Because they always encapsulate back on "next". This is how I want to declare this function instead: function getIp(request) { let forwadedRef = request.headers.get('x-forwarded-ref') } A subtle difference, right?

Now that @reactjs has gone full circle to server-rendered websites like the good old php days... how far away are we from the next cyclical trend of SPAs being the "correct" way to build websites for *insert reasons here* 🤷‍♂️

Looking forward to the day we as a community realized file system-based routing was a mistake. Once you glimpse over the initial appeal, you see there's a flaw on a flaw. - File names aren't a format dynamic enough to support the extremely dynamic nature of routes; - Concern

cc/ @thymikee @kadikraman @srestaino I know you all use RN extensively 🙏

Do I go RN-cli or use @expo? What’s the deal with styling? Take it Tailwind is a no no Anyone ported over @shadcn ui to RN yet? What are the best practices around project structure, storing app state, auth, making http requests? Any resources / guides that you recommend?

Hey friends 👋 do I know any @reactnative experts? I’m planning on building an app for fun / to learn RN, question is where do I begin? Any advice would be greatly appreciated! Some questions below 👇

Just use cookies with httpOnly, secure and same-site enabled 🍪 I’ve never understood the fascination of storing tokens in localStorage, especially JWTs they can be stored in a cookie too you know 🤫

Everyone sees the missing await / error handling which are trivial to solve. I see the lack of parsing the JSON into something trustworthy via Zod/io-ts. I see so many bugs caused by devs trusting a value provided by the network. Also TS any on .json() aids this problem!

This reminds me of the classic: "There are only two hard things in Computer Science: cache invalidation and naming things." Surely @nextjs would be better off making the soft navigation caching opt-in rather than default? That said maybe I'm missing obvious 🤷‍♂️

Am curious why @nextjs has opted for soft navigation caching by default in the app router?? I've been playing around with it today and it seems to be a minefield to actually get dynamic content to refetch when navigating and there is a plethora of related issues.

@jsjoeio i would always prefer dependency injection or some other design change to mocking. and probably testing the logic on a higher level (not sure if your example is a simplified version if the real thing)

We don't talk about this enough...

Tell me you don't know how to write testable code without telling me you don't know how to write testable code.

Easy to forget, but the debate about signals is the same one we had about 2-way data binding vs unidirectional data flow 10 years ago. Signals are mutable state! They’re bindings with a new name. The simplicity of UI as a function of state is lost when updates flow unpredictably.

This is so cool!! I absolutely love Sandpack v1 but Sandpack v2 with Nodebox is just... 🤯 Amazing work by everyone at @codesandbox I can't wait to play with this properly 🎉

With Sandpack 2.0 & Nodebox, we're taking a step forward in improving the development world for students, content creators, open-source maintainers, and more. 🔥 Powerful. Fast. Ready To Use. 🔥

And here's the code to render the example 👆