#Async

Articles about Async — exploring patterns, best practices, and real-world implementations in production systems.

2 posts tagged with async. ← All posts

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Pratik Dhanave · ·6 min read

Typing Async Code and the Event Loop

Almost everything interesting in JavaScript is asynchronous — network calls, file reads, timers — and TypeScript types all of it through one generic: `Promise<T>`. But typing async code well means understanding the runtime it describes: the single-threaded event loop that makes non-blocking concurrency work. Types and runtime together are what let you write async code that's both correct and comprehensible.

Almost everything interesting in JavaScript is asynchronous, and TypeScript types all of it through one generic: Promise<T>. But typing async code well means understanding the runtime it describes — the single-threaded event loop that makes non-blocking concurrency work. Types and runtime together let you write async code that's correct and comprehensible.

#TypeScript#Async#JavaScript#Concurrency#Programming Languages#Backend Engineering
Pratik Dhanave · ·8 min read

Async and Await

Threads are great for CPU-bound parallelism, but for handling thousands of network connections — each mostly waiting — spawning a thread per connection doesn't scale (recall the C10K problem from the OS series). Async/await is Rust's answer: write code that looks sequential but doesn't block a thread while waiting, letting a handful of threads handle enormous concurrency. Rust's async is powerful and zero-cost, with one distinctive twist — you bring your own runtime to actually run the async code.

For handling thousands of connections each mostly waiting, spawning a thread per connection doesn't scale. Async/await is Rust's answer: write code that looks sequential but doesn't block a thread while waiting. Rust's async is powerful and zero-cost, with one distinctive twist — you bring your own runtime.

#Rust#Async#Concurrency#Programming Languages#Systems Programming#Backend Engineering

All posts on this site are written by Pratik Dhanave, an Agentic AI Architect with 7+ years building production distributed systems, multi-agent AI platforms, and cloud-native infrastructure. About the author → Each article includes working code, architecture diagrams, and references to the specific frameworks and standards discussed. Browse all posts or explore related topics using the tag cloud above.