GitHub - mitranim/posterus: Composable async primitives with cancelation, control over scheduling, and coroutines. Superior replacement for JS Promises.Humans and even programs change their minds all the time. Many behaviors we consider intuitive rely on some form of cancelation. Start playing a video, then hit stop. Should it finish playing? Click a web link, then immediately click another. Should it still load the first link? Start uploading a file, then hit stop. Should it upload anyway? Run an infinite loop. Should it hog a CPU core until you
