Continuing the discussion from the once PR. Regarding the discussion of EventEmitter.on(emitter, "eventName")

events.on(emitter, name)

• emitter <EventEmitter>
• name <string>
• Returns: <AsyncIterable>

Creates an AsyncIterable that yields promises for the values of the given event name in the given EventEmitter. The iterable rejects the next promise when the EventEmitter emits 'error'. Calling .return on the iterable removes the subscription which means the iterable unsubscribes automatically when a for await loop is broken or returned from.

Here is an example of the API:

const events = on(emitter, "item");
events.next(); // Promise for the next event value 
events.return(); // unsubscribe
events.throw(); // not sure what we want this to do, we might want to emit `error` on 

Or with for await syntax:

const foos = on(emitter, 'foo');
for await (const foo of foos) {
  foo; // the next value from the emitter
  break; // this calls `.return` on the async iterable and unsubscribes.
}

cc @mcollina @jasnell @MylesBorins @addaleax @BridgeAR