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events: fix: shared object references #25467

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events: fix: shared object references #25467

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4 changes: 4 additions & 0 deletions doc/api/events.markdown
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Expand Up @@ -118,6 +118,10 @@ Execute each of the listeners in order with the supplied arguments.

Returns `true` if event had listeners, `false` otherwise.

**Note:** Objects are passed by reference, meaning that the same object can be
passed to multiple listeners. If a listener needs to modify a shared object, a
copy of the object should be made.


### Class Method: EventEmitter.listenerCount(emitter, event)

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