shallowClone - nodef/extra-array GitHub Wiki
Shallow clone an array.
Alternatives: shallowClone, deepClone.
function shallowClone(x)
// x: an array
const xarray = require('extra-array');
var x = [1, 2, 3, [4, 5]];
var y = xarray.shallowClone(x);
// → [ 1, 2, 3, [ 4, 5 ] ] (y shallow cloned)
y[1] = 0; y;
// → [ 1, 0, 3, [ 4, 5 ] ] (y modified)
x;
// → [ 1, 2, 3, [ 4, 5 ] ] (x not modified)
y[3][0] = 0; y;
// → [ 1, 0, 3, [ 0, 5 ] ] (y modified)
x;
// → [ 1, 2, 3, [ 0, 5 ] ] (x modified)