queue-microtask

A fast, tiny polyfill for the WHATWG queueMicrotask function for modern JavaScript engines. Current stable version is 1.2.3, with infrequent releases. It provides a standardized microtask queuing mechanism (equivalent to Promise.resolve().then(fn)) in all modern browsers and Node.js, with zero dependencies and under 10 lines of code. Unlike heavier alternatives like immediate or asap, it prioritizes small bundle size and uses native queueMicrotask where available, falling back to Promise.resolve().then() in older environments.