rotate - nodef/extra-iterable GitHub Wiki

Rotate values in iterable.

Similar: repeat, cycle, rotate, reverse.

function rotate(x, n)
// x: an iterable
// n: rotate amount (+ve: left, -ve: right) [0]

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

var x = [1, 2, 3, 4];
[...xiterable.rotate(x, 1)];
// → [2, 3, 4, 1]

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

[...xiterable.rotate(x, -1)];
// → [4, 1, 2, 3]

References