arrow-fx-coroutines / arrow.fx.coroutines.stream / Stream / range

range

fun range(range: IntProgression): Stream<Int>

Lazily produce the range [start, stopExclusive). If you want to produce the sequence in one chunk, instead of lazily, use emits(start until stopExclusive).

import arrow.fx.coroutines.stream.*

//sampleStart
suspend fun main(): Unit =
  Stream.range(0..20 step 2)
    .toList().let(::println) // [0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20]
//sampleEnd

fun range(range: LongProgression): Stream<Long>

Lazily produce the range [start, stopExclusive). If you want to produce the sequence in one chunk, instead of lazily, use emits(start until stopExclusive).

import arrow.fx.coroutines.stream.*

//sampleStart
suspend fun main(): Unit =
  Stream.range(0L..15 step 3)
    .toList().let(::println) // [0, 3, 6, 9, 12, 15]
//sampleEnd

fun range(range: CharProgression): Stream<Char>

Lazily produce the range [start, stopExclusive). If you want to produce the sequence in one chunk, instead of lazily, use emits(start until stopExclusive).

import arrow.fx.coroutines.stream.*

//sampleStart
suspend fun main(): Unit =
  Stream.range('a'..'z' step 2)
    .toList()
    .let(::println) // [a, c, e, g, i, k, m, o, q, s, u, w, y]
//sampleEnd