const { Stew } = require('stews');

let arr = new Stew([ "a", "c" ]);
let copy = arry.copy();

arr[1] = "b";

console.log(arr);
console.log(copy);

const { Stew } = require('stews');

let obj = new Stew({ key1: "val1", key2: "val3" });
let copy = obj.copy();

obj[1] = "val2";

console.log(obj);
console.log(copy);

Stew(2) [ "a", "b" ] // original
Stew(2) [ "a", "c" ] // copy

Stew(2) { key1: "val1", key2: "val2" } // original
Stew(2) { key1: "val1", key2: "val3" } // copy