[email protected]

@matthewcp Unfortunately, this currently not supported (see github.com/microsoft/Type…). Is there any chance to infer U from one of the arguments, too?

In TypeScript, having both required and optional type params seems to break inference. Am I doing something wrong here or is there another way to do this? #code/JYOwLgpgTgZghgYwgAgEoFcQmsg3gKGSOSkwAoBKALmQDcB7YAEwG58BffMATwAcUMWaABU+KALx5CxbAHdKNQdigd8XMWggJ6UJgGcAPAElkEAB6QQ+zdt0G9YKKADmAGjSZlo-gD4fySQJiZABtAGtkUGQwiG56GGQjAF0aI3CktnY2fBhMBDBgehBkBCgIOEhhAAsXA2kiAFVXeuRhUwsIKz0PIShvCR6vMWbg1HbLa1QtHSZ7Rxd3JRExf0kp21mHJxA3QeXffB8yFoBbbn6aYRHiMo29RXxqGxnDVH8gm4gwdChi3HZkHBunAQNxMmoePxkAAFaB6IoBPBZfDaEAOZBnfqIhAAGyB3Q+RFIIEo-1UKLxem6AHlsFJgsTSZxOCiiuiwDUdtiyhUINVarCoPCQEdMcN6cRaRAOBRshyXEA" target="_blank" rel="nofollow noopener">typescriptlang.org/play/?#code/JY…

Any #nextjs experts out there who can help me with this caching/ISR question? github.com/vercel/next.js…

@_developit what happened to the reverse transpiler project you used to work on? It sounded so promising!

@dpeek_ They are the global built-in JavaScript constructors.

@fgnass Where are Number and String defined?

🧙‍♂️ My new favorite method for checking types at both runtime and compile time:

@housecor In situations where it's only important to check runtime types and not constraints as min/max, I can highly recommend type-assurance. It's < 1kB and has a neat way to define schemas:

Problem: TypeScript can't validate runtime data. Solution: Use Zod to validate runtime data. 6 things I validate at runtime via Zod: ✅ URL ✅ Cookie ✅ Form inputs ✅ Environment variables ✅ localStorage/sessionStorage ✅ JSON in REST API responses Examples:

I really dig the new API for aborting requests:

@ImSh4yy npmjs.com/package/type-a…

What's your favorite less-known npm package? I'll go first, I've been loving `simple-statistics` these days.

@DylanZemek You can do this quite conveniently using github.com/fgnass/type-as…

Anyone know how to narrow this type at runtime, can't use array.every? #typescript

Did you ever hesitate to add a library like zod to your project because you didn't want to add 13kb to your bundle size for a bunch of runtime checks? With github.com/fgnass/type-as… you get a lot of the features in just 443 bytes 😱

@JSer_ZANP zod is 13.1 kB (gzipped) while this is only 443 bytes.

@fgnass why don't we just use zod?

View Transition powered drag n' drop! just drag events then swappin DOM, #CSS view transitions doin all the animation work (which it's GREAT AT) 🤯 that animated emoji don't miss a beat try it! codepen.io/argyleink/pen/…

🔵 I guess I prefer social networks with a bright theme, like blue for example: bsky.app/profile/fgnass…

Works like a charm, even with German recipes 🧑‍🍳

@FronteersConf Oh no! If I had known that the event was in jeopardy, I would have bought a ticket, even though I already attended @Future_Frontend this year. I have fond memories of my last Fronteers and this year's lineup sounded fantastic. 😢

+++ Fronteers Conference 2023 cancelled 😭+++ Despite a big marketing push in the last few weeks, we didn't manage to sell enough tickets to make it possible for us to hold this year's conference. The financial risk would have been too big. More info at fronteersconf.org

Today I learned: By using an HDR <video>, a website can display a very bright white, like ~7 times brighter than #FFFFFF, on an iPhone/iPad. This can be used to e.g. show a bright QR code for easy scanning despite user’s low brightness settings. notes.dt.in.th/HDRQRCode

Following up on @aleksandrasays #FutureFrontend talk on APIs I'd love to also mention github.com/fgnass/typed-r… which is a really really lightweight, type-safe JSON-RPC implementation that also works in Cloudflare Workers or Deno ⚡

I so much enjoyed yesterday's #FutureFrontend session by @teropa and @jevakallio on Web Audio and CRDTs! A few years ago I built fgnass.github.io/orca.wtf/ which allows for jamming together via Yjs 🎧

Will frontend development become obsolete any time soon? Great panel discussion here at #FutureFrontend about AI 🤖

The historic Helsinki Stock Exchange is such a great venue for #FutureFrontend. Just look at these amazing control panels here on stage 🤩