shift$ (original) (raw)
Remove first value!
Alternatives: shift, shift$.
Similar: push, pop, shift, unshift.
function shift$(x) // x: an array (updated!)
const xarray = require('extra-array');
var x = [1, 2, 3]; xarray.shift$(x); // → [ 2, 3 ]
x; // → [ 2, 3 ]
var x = [1, 2, 3, 4]; xarray.shift$(x); // → [ 2, 3, 4 ]