The disposed accessor property of DisposableStack instances returns a boolean indicating whether or not this DisposableStack has been disposed or moved by doing any of the following:
dispose() methodmove() methodusing and letting the variable go out of scope, which automatically calls the [Symbol.dispose]() method.const disposer = new DisposableStack();
console.log(disposer.disposed); // false
disposer.dispose();
console.log(disposer.disposed); // true