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Make Observable disposable #150

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jasnell opened this issue Jun 10, 2024 · 0 comments
Open

Make Observable disposable #150

jasnell opened this issue Jun 10, 2024 · 0 comments
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possible future enhancement An enhancement that doesn't block standardization or shipping

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@jasnell
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jasnell commented Jun 10, 2024

It would be useful for the Observable class to support the upcoming Symbol.dispose or Symbol.asyncDispose mechanism (TC39 Explicit Resource Management proposal) such that when the Observable is disposed while still active, any outstanding subscriptions and closed and outstanding promises are rejected.

using obs1 = eventTarget.on('foo');
using obs2 = Observable.from(asyncIterable);

This is particularly helpful in cases where a block of code may wish to only temporarily attach itself to a particular event source (like an EventTarget that long outlives the Observable)

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Labels
possible future enhancement An enhancement that doesn't block standardization or shipping
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