constarray = require("extra-array");
var x = [1, 2, 3, 4, 5];
var y = [10, 20, 30];
array.copy$(x, y);
x;
var x = [1, 2, 3, 4, 5];
array.copy$(x, y, 1);
var x = [1, 2, 3, 4, 5];
array.copy$(x, y, 1, 1);
var x = [1, 2, 3, 4, 5];
array.copy$(x, y, 1, 1, 2);