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doc: revise AbortSignal text and example using events.once() #35005

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merged 2 commits into from Sep 3, 2020
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doc: revise AbortSignal text and example using events.once() #35005

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doc: revise AbortSignal text and example using events.once()
Trott Sep 1, 2020
cc754f2
doc: make AbortSignal text consistent in events.md
Trott Sep 3, 2020
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11 changes: 5 additions & 6 deletions doc/api/events.md
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Expand Up @@ -835,8 +835,7 @@ added:
* `emitter` {EventEmitter}
* `name` {string}
* `options` {Object}
* `signal` {AbortSignal} An {AbortSignal} that may be used to cancel waiting
for the event.
* `signal` {AbortSignal} Can be used to cancel waiting for the event.
* Returns: {Promise}

Creates a `Promise` that is fulfilled when the `EventEmitter` emits the given
Expand Down Expand Up @@ -895,7 +894,7 @@ ee.emit('error', new Error('boom'));
// Prints: ok boom
```

An {AbortSignal} may be used to cancel waiting for the event early:
An {AbortSignal} can be used to cancel waiting for the event:

```js
const { EventEmitter, once } = require('events');
Expand All @@ -918,6 +917,7 @@ async function foo(emitter, event, signal) {

foo(ee, 'foo', ac.signal);
ac.abort(); // Abort waiting for the event
ee.emit('foo'); // Prints: Waiting for the event was canceled!
```

### Awaiting multiple events emitted on `process.nextTick()`
Expand Down Expand Up @@ -1010,8 +1010,7 @@ added:
* `emitter` {EventEmitter}
* `eventName` {string|symbol} The name of the event being listened for
* `options` {Object}
* `signal` {AbortSignal} An {AbortSignal} that can be used to cancel awaiting
events.
* `signal` {AbortSignal} Can be used to cancel awaiting events.
* Returns: {AsyncIterator} that iterates `eventName` events emitted by the `emitter`

```js
Expand Down Expand Up @@ -1041,7 +1040,7 @@ if the `EventEmitter` emits `'error'`. It removes all listeners when
exiting the loop. The `value` returned by each iteration is an array
composed of the emitted event arguments.

An {AbortSignal} may be used to cancel waiting on events:
An {AbortSignal} can be used to cancel waiting on events:

```js
const { on, EventEmitter } = require('events');
Expand Down