rotate$ - nodef/extra-array GitHub Wiki
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 ]