disposable: wrapper to make an object disposable with the using keyword

using feature explanation in TypeScript 5.2 docs

Create val
import { disposable } from "https://esm.town/v/postpostscript/disposable";

using state = disposable(
  {
    x: 1,
    y: 2,
  },
  (value) => console.log("state disposed", value),
);
// state disposed { x: 1, y: 2, [Symbol(Symbol.dispose)]: [Function (anonymous)] }

or, to use a proxy instead of modifying the original object:

Create val
using state = disposable(
  {
    x: 1,
    y: 2,
  },
  (value) => console.log("proxyState disposed", value),
  true,
);
// proxyState disposed { x: 1, y: 2 }

Full Example

Migrated from folder: Utils/disposable