Explicit resource management

The using and await using declarations and the dispose and asyncDispose symbols manage the lifecycle of resources such as file handles and streams. The DisposableStack and AsyncDisposableStack objects can group, dispose, and coordinate dependencies between multiple disposable resources. Shipping in Safari 27.3 (beta). Probes DisposableStack, SuppressedError. More: developer.mozilla.org/docs/Web/JavaScript/Referenc… tc39.es/proposal-async-explicit-resource-managemen… web-platform-dx.github.io/web-features-explorer/fe…

Shazzer Master

Created Nov 13, 2026

Updated Nov 13, 2026

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CategoryJavaScript Syntax

VisibilityPublic

TypeFEATURE

CharsetUTF-8

Template used:

(typeof DisposableStack !== "undefined") && (typeof SuppressedError !== "undefined")

Feature support

Detection snippet

(typeof DisposableStack !== "undefined") && (typeof SuppressedError !== "undefined")

Chrome156.0.0.0

✓ Works

Chrome

History 1 version

The using and await using declarations and the dispose and asyncDispose symbols manage the lifecycle of resources such as file handles and streams. The DisposableStack and AsyncDisposableStack objects can group, dispose, and coordinate dependencies between multiple disposable resources. Shipping in Safari 27.3 (beta). Probes DisposableStack, SuppressedError. More: developer.mozilla.org/docs/Web/JavaScript/Referenc… tc39.es/proposal-async-explicit-resource-managemen… web-platform-dx.github.io/web-features-explorer/fe…