Promises, handlers, and chains are foundations of modern JavaScript, but they can be tricky. Here are four common traps to watch out for.

JavaScript promises: 4 gotchas and how to avoid them. Jun 4, 2025 8 mins. feature. AI didn’t kill Stack Overflow. May 28, 2025 9 mins. feature. Putting agentic AI to work in Firebase Studio.

Modular and fast Promises implementation for JavaScript Implementation originally inspired by Kris Kowal's Q Deferred is complete, one of the fastest and natural promise implementation in JavaScript, ...

JavaScript Promises help you to implement legible and maintainable single-threaded asynchronous logic (e.g. for network applications). Such programs entirely avoid the pitfalls of concurrency, are ...

Promises were introduced in ES6 (ECMAScript 2015) to improve the way JavaScript handles asynchronous tasks, such as network requests or reading files. A Promise is an object that represents the ...

This JavaScript thing might just catch on. The world's most popular programming language is starting to look like a real programming language, with classes, modules, promises and more. There's even a ...