Cancelable async primitives for JavaScript
Composable async primitives with cancelation, control over scheduling, and coroutines. Superior replacement for JS Promises. - mitranim/posterus
Cancelable async primitives for JavaScript launched on August 8, 2017 with 84 votes, #553 of 3,214 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 9 years on.
In plain words
This is a JavaScript library that provides cancelable async primitives for developers. It allows programmers to create asynchronous operations that can be stopped or canceled before completion. The library is designed for JavaScript developers who need more control over async tasks in their applications. It was released in 2017 and is available on GitHub for open-source use.
written from the facts on this page · September 2026
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