← back to v131 · explicit-resource-management-async
conformance · v131
v131 · explicit-resource-management-async — conformance probe
9 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.
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pass
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| id | contract | kind | verdict | detail |
|---|---|---|---|---|
asyncdispose-well-known-symbol |
Symbol.asyncDispose is exposed as a well-known symbol for async disposable resources. spec ↗ | script | … | |
asyncdisposablestack-constructor |
AsyncDisposableStack is exposed as a global constructor. | typeof | … | |
asyncdisposablestack-use |
AsyncDisposableStack instances expose a use() method that registers an async disposable. | script | … | |
asyncdisposablestack-disposeAsync |
AsyncDisposableStack instances expose disposeAsync(), the async counterpart of dispose(). | script | … | |
asyncdisposablestack-disposeAsync-returns-promise |
AsyncDisposableStack.prototype.disposeAsync() returns a Promise. | script | … | |
asyncdisposablestack-defer |
AsyncDisposableStack instances expose defer() for ad-hoc async cleanup callbacks. | script | … | |
await-using-syntax |
The await using declaration syntax is accepted inside async functions. spec ↗ | script | … | |
await-using-lifo-disposal |
Multiple await using resources dispose in last-in-first-out order. spec ↗ | script | … | |
suppressed-error-chaining |
When the body and async disposer both throw, the thrown value is a SuppressedError with error and suppressed entries. spec ↗ | script | … |