标签：#t

You have read five blog posts about monads. Each one started with category theory, mentioned burritos, and left you more confused than before. Let's skip all of that. Here is the short version: a monad is a container that supports three operations. You already use two monads every day in TypeScript — Promise and Array . Once you see the pattern, every monad in @oofp/core will feel familiar. The Three Operations Every monad has three things: of(a) — Put a value into the container. map(f) — Transform the value inside, keep the container shape. chain(f) — Transform the value into a new container, then flatten. That's it. If a type supports these three operations and follows a few simple laws, it's a monad. Let's see this with types you already know. Promise — a monad you use daily // of — wrap a value const p = Promise . resolve ( 42 ); // map — transform the inside (then with a plain return) const doubled = p . then (( x ) => x * 2 ); // Promise<number> // chain — transform into a new Promise (then with an async return) const fetched = p . then (( id ) => fetch ( `/api/users/ ${ id } ` )); // Promise<Response> Promise.resolve is of . .then acts as both map and chain — JavaScript conflates them. When your callback returns a plain value, it's map . When it returns a Promise , it's chain . The runtime flattens the nested Promise<Promise<T>> into Promise<T> automatically. Array — another monad hiding in plain sight // of — wrap a value const arr = [ 42 ]; // map — transform each element const doubled = arr . map (( x ) => x * 2 ); // [84] // chain — transform each element into an array, then flatten const expanded = arr . flatMap (( x ) => [ x , x * 10 ]); // [42, 420] Array.of (or just [value] ) is of . .map is map . .flatMap is chain . Same pattern, different container. The insight is: chain is map followed by flatten . That's why it's also called flatMap or bind . You apply a function that returns a new container, then flatten the nested result. Maybe: Eliminating null

Charing your phone in the car may technically use energy, but not enough to give a second thought.

If there's a place in the universe without GPUs, Nvidia is sending them there.

Imagi announced a $4.5 million seed round, with investors including Brighteye Ventures, Day One Capital, and artist Will.i.am.

Etched, founded by three Harvard dropouts, has created new chips and memory components that speed up inference on any AI model -- no GPUs required, it says.

There’s no shortage of great shows and movies to watch, but discovering something new isn’t always easy. Amazon’s Fire TV Stick 4K Plus and Fire TV Stick 4K Max come with redesigned software that aims to make it easier to finding something you’ll like, and both 4K-ready streaming sticks are back to their lowest prices […]

It's impossible to talk about a new Xbox game without also talking about the state of Xbox. Microsoft's gaming division is in freefall: Recent headlines are dominated by extensive layoffs, decimated studios, and confusing strategies, most of which stem from years of bad decisions and expensive acquisitions. But it wasn't always that way. Through its […]

The film, from Weapons director Zach Cregger, hits theaters on September 18.

Amazon is hoping the addition of games can turn Prime Video into a one-stop entertainment destination, borrowing a strategy from Netflix, which has increasingly embraced party games over the past several years.

Aggressive training techniques sharpens threat of bad behavior by leading models.

I have been quiet lately I know - but don't worry I haven't forgotten you all and how much you like...

Barrels of fun.

Expedia Group has introduced STAR, an internal AI-assisted observability platform that helps engineers investigate production incidents using service telemetry and LLMs. Built with FastAPI, Datadog, Celery, Redis, and Langfuse, STAR follows structured workflows to analyze telemetry, generate root cause assessments, and support incident response while keeping engineers in the loop. By Leela Kumili

Lawmakers are preparing to introduce an "AI Kill Switch Act" that would require AI companies to shut down or throttle their systems on orders from the Department of Homeland Security, according to a report from Politico. Reps. Ted Lieu (D-CA) and Nathaniel Moran (R-TX) are expected to introduce the legislation on Thursday. The news of […]

It's a sign of how hard we're braced for the RAMpocalypse that Samsung adding just $100 to its prices seems reasonable.

Volunteer at TechCrunch Disrupt 2026 and get a behind-the-scenes look at how one of the world's biggest startup conferences gets built.

Ford is the first automaker to use a new set of developer tools that will let it embed Apple Maps navigation and mapping directly into its vehicles' infotainment systems.

Ford plans to embed Apple Maps directly into its Universal Electric Vehicle Platform, which will start with a $30,000 midsize pickup truck set for release in 2027. In an announcement on Thursday, Ford says it will use Apple Maps to offer "turn-by-turn directions using natural language, real-time traffic and incident information, intuitive search featuring detailed […]

GitHub热门项目 | Offline, privacy-first grammar checker. Fast, open-source, Rust-powered | Stars: 11,873 | 590 stars today | 语言: Rust

GitHub热门项目 | Free Motion Capture for Everyone 💀✨ | Stars: 9,664 | 74 stars today | 语言: TypeScript