---
title: AsyncDisposableStack
slug: Web/JavaScript/Reference/Global_Objects/AsyncDisposableStack
page-type: javascript-class
browser-compat: javascript.builtins.AsyncDisposableStack
sidebar: jsref
---

The **`AsyncDisposableStack`** object represents a stack of [async disposers](/en-US/docs/Web/JavaScript/Reference/Statements/await_using) to run when the stack itself is disposed. Disposer functions are executed in reverse order of registration, with strong error handling guarantees. Calling its `move()` method will transfer responsibility for calling the current registered disposers to a new `AsyncDisposableStack` and prevent registering any additional disposers.

See {{jsxref("DisposableStack")}} for general information about using disposable stacks.

## Constructor

- {{jsxref("AsyncDisposableStack/AsyncDisposableStack", "AsyncDisposableStack()")}}
  - : Creates a new `AsyncDisposableStack` object.

## Instance properties

These properties are defined on `AsyncDisposableStack.prototype` and shared by all `AsyncDisposableStack` instances.

- {{jsxref("Object/constructor", "AsyncDisposableStack.prototype.constructor")}}
  - : The constructor function that created the instance object. For `AsyncDisposableStack` instances, the initial value is the {{jsxref("AsyncDisposableStack/AsyncDisposableStack", "AsyncDisposableStack")}} constructor.
- {{jsxref("AsyncDisposableStack.prototype.disposed")}}
  - : Read-only. Returns `true` if the `AsyncDisposableStack` has been disposed, or `false` if not.
- `AsyncDisposableStack.prototype[Symbol.toStringTag]`
  - : The initial value of the [`[Symbol.toStringTag]`](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toStringTag) property is the string `"AsyncDisposableStack"`. This property is used in {{jsxref("Object.prototype.toString()")}}.

## Instance methods

- {{jsxref("AsyncDisposableStack.prototype.adopt()")}}
  - : Registers a value that doesn't implement the async disposable protocol to the stack by providing a custom disposer function.
- {{jsxref("AsyncDisposableStack.prototype.disposeAsync()")}}
  - : Disposes this stack by calling all disposers registered to it in reverse order of registration.
- {{jsxref("AsyncDisposableStack.prototype.defer()")}}
  - : Takes a callback function to be called when the stack is disposed.
- {{jsxref("AsyncDisposableStack.prototype.move()")}}
  - : Creates a new `AsyncDisposableStack` instance that contains the same disposers as this stack, and then marks this stack as disposed, without calling any disposers.
- {{jsxref("AsyncDisposableStack.prototype.use()")}}
  - : Registers a value that implements the async disposable protocol to the stack.
- [`AsyncDisposableStack.prototype[Symbol.asyncDispose]`](/en-US/docs/Web/JavaScript/Reference/Global_Objects/AsyncDisposableStack/Symbol.asyncDispose)
  - : An alias for the `disposeAsync()` method.

## Specifications

{{Specifications}}

## Browser compatibility

{{Compat}}

## See also

- [Polyfill of `AsyncDisposableStack` in `core-js`](https://github.com/zloirock/core-js#explicit-resource-management)
- [JavaScript resource management](/en-US/docs/Web/JavaScript/Guide/Resource_management)
- {{jsxref("Symbol.asyncDispose")}}
- {{jsxref("Statements/await_using", "await using")}}
- {{jsxref("DisposableStack")}}