cycle

Obtain values that cycle through an iterable.

Similar: repeat, cycle, rotate, reverse.

function cycle(x, i, n)
// x: an iterable
// i: start index [0]
// n: number of values [-1 ⇒ Inf]

const xiterable = require('extra-iterable');

var x = [1, 2, 3];
[...xiterable.cycle(x, 0, 2)];
// → [1, 2]

[...xiterable.cycle(x, 0, 4)];
// → [1, 2, 3, 1]

[...xiterable.cycle(x, 1, 6)];
// → [2, 3, 1, 2, 3, 1]

References

• List-Extra.cycle: elm
• Data.List.cycle: Haskell