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[6a3a178] | 1 | # eventemitter-asyncresource - AsyncResource integration for EventEmitter
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| 2 |
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| 3 | Integrates [`EventEmitter`][] with [`AsyncResource`][] for `EventEmitter`s that
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| 4 | require manual async tracking.
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| 5 |
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| 6 | ```js
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| 7 | const { EventEmitterAsyncResource } = require('eventemitter-asyncresource');
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| 8 |
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| 9 | // Async tracking tooling will identify this as 'Q'.
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| 10 | const ee = new EventEmitterAsyncResource({ name: 'Q' });
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| 11 |
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| 12 | // 'foo' listeners will run in this EventEmitter’s async context.P
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| 13 | ee.emit('foo');
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| 14 | ```
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| 15 |
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| 16 | The `EventEmitterAsyncResource` class has the same methods and takes the same
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| 17 | options as `EventEmitter` and `AsyncResource` themselves.
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| 18 |
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| 19 | It provides an `.asyncResource` property that allows accessing the async
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| 20 | resource in question, which in turn provides the original `EventEmitter` via
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| 21 | `.eventEmitter`, i.e. in the above example
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| 22 | `ee.asyncResource.eventEmitter === ee`.
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| 23 |
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| 24 | [`EventEmitter`]: https://nodejs.org/api/events.html#events_class_eventemitter
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| 25 | [`AsyncResource`]: https://nodejs.org/api/async_hooks.html#async_hooks_class_asyncresource
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