rotate$ (original) (raw)

Rotate values in array!

Alternatives: rotate, rotate$.
Similar: repeat, cycle, rotate, reverse.

function rotate$(x, n) // x: an array (updated!) // n: rotate amount (+ve: left, -ve: right) [0]

const xarray = require('extra-array');

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

x; // → [ 2, 3, 4, 1 ]

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

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

References

• Collections.rotate() : Java
• arr-rotate : @kevva