[Bug] When starting a spinner, the process won't stop after your script is done executing.

Environment

OS: macOS
Deno Version: 2.2.4
Package: @clack/prompts
Package Version: 0.11.0

Describe the bug
When starting a spinner, the node / deno process won't stop after your script is done executing.

To Reproduce
Just start the spinner and stop it.
Your process should never quit on its own from now on.

Expected behavior
Your process should properly stop after stopping the spinner.

Additional Information
It probably has something to do with an event listener that's not being cleaned up properly.

do you mean you didn't call stop()?

this makes sense as there's nothing we can listen for. an exit won't happen because the spinner is still iterating on a timer in the background, so there's no exit event to catch.

if something forcefully exits, the spinner does stop.

but you really should call stop()

its the same as if you had a setInterval running in your code somewhere, it'll never exit if you don't clean it up.

if you are calling stop, please provide an example as i can't reproduce that

I mean after calling stop

if you are calling stop, please provide an example as i can't reproduce that

do you have an example?

i've tried this locally and it works fine, so i think we will need a reproduction from you

Yeah, so I just tried it on Node and it seems to work.
But in Deno it will get stuck.

import { spinner } from '@clack/prompts'

const spin = spinner()
spin.start('Hello')
spin.stop('World')

However, i also had instances where my cli tool running in node would get stuck.
Just not sure now if the spinner was the problem anymore XD

i also can't reproduce that in main, so i wonder if its a long gone problem

can you try out 1.0.0-alpha.1 and see if it still happens? so we at least know if its been fixed in latest

The same is also happening with progress when using Deno.

import { progress } from '@clack/prompts'

const spin = progress()
spin.start('Hello')
spin.stop('World')

// process.stdin.unref?.(); // this is needed to exit with Deno

Deno Version: v2.6.10
Package Version: 1.0.1

Seems like this related to this Deno issue: denoland/deno#30075 (comment)

yup this sounds like a deno bug.

the original bug in this thread also has no repro in 1.x, so im going to close this.

we do clear all timers and such on exit fyi.

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[Bug] When starting a spinner, the process won't stop after your script is done executing. #348

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[Bug] When starting a spinner, the process won't stop after your script is done executing. #348

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43081j commented on Jul 1, 2025

ivands commented on Jul 3, 2025

43081j commented on Jul 3, 2025

ivands commented on Jul 3, 2025

43081j commented on Jul 3, 2025

mikkelal commented on Feb 23, 2026

43081j commented on Feb 24, 2026

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