char-spinner

Put a little spinner on process.stderr, as unobtrusively as possible.

USAGE

``ts
import { spinner } from 'char-spinner'

// All options are optional
// even the options argument itself is optional
const clear = spinner(options)

// the return value is the clear function
// call it to stop the spinner
clear()
`

OPTIONS

Usually the defaults are what you want. Mostly they're just
configurable for testing purposes.

- stream Output stream. Default=process.stderr
- tty Only show spinner if output stream has a truish .isTTY. Default=true
- string String of chars to spin. Default='/-\\|'
- interval Number of ms between frames, bigger = slower. Default=50
- cleanup Print '\r \r' to stream on process exit. Default=true
- unref Unreference the spinner interval so that the process can
exit normally. Default=true
- delay Number of frames to "skip over" before printing the spinner.
Useful if you want to avoid showing the spinner for very fast
actions. Default=2
- promise` Pass in a promise or promise-returning function if
you want it to automatically stop spinning when the promise
resolves.

Returns the generated interval, if one was created.