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AsyncDisposableStack.prototype[Symbol.asyncDispose]()

Baseline Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The [Symbol.asyncDispose]() method of AsyncDisposableStack instances implements the async disposable protocol and allows it to be disposed when used with await using. It is an alias for the disposeAsync() method.

Syntax

asyncDisposableStack[Symbol.asyncDispose]()

Parameters

None.

Return value

None (undefined).

Examples

Declaring a stack with await using

The Symbol.asyncDispose method is intended to be automatically called in an await using declaration.

async function doSomething() {
  await using disposer = new AsyncDisposableStack();
  const resource = disposer.use(new Resource());
  resource.doSomething();
  // disposer is disposed here immediately before the function exits
  // which causes the resource to be disposed
}

Specifications

Specification
ECMAScript Async Explicit Resource Management
# sec-asyncdisposablestack.prototype-@@asyncDispose

Browser compatibility

Desktop Mobile Server
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on iOS Samsung Internet WebView Android WebView on iOS Bun Deno Node.js
@@asyncDispose
134
134
141
119
preview
134
141
88
No
29.0
134
No
1.3.0
2.2.10
24.0.0

See also

  • JavaScript resource management
  • AsyncDisposableStack
  • AsyncDisposableStack.prototype.disposeAsync()

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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/AsyncDisposableStack/Symbol.asyncDispose

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