slice

type slice = (
  from: number,
  to: number
) => <T>(stream: Observable<T>) => Observable<T>

stream:              -a-b-c-d-e->
slice(1, 3)(stream): ---b-c|

Create a new stream containing only events where from <= index < to, where index is the ordinal index of an event in stream.

import { of } from 'light-observable/observable'
import { slice } from 'light-observable/operators'

const stream = of(1, 2, 3, 4, 5).pipe(
  slice(1, 3)
) 

stream.subscribe(console.log)
/*
 -> 2
 -> 3
*/

Also available as an Observable creator:

import { slice, of } from 'light-observable/observable'

const stream = slice(1, 3, of(1, 2, 3, 4, 5))

stream.subscribe(console.log)
/*
 -> 2
 -> 3
*/