Subscribe *Promise Pending Status

[gastraight]

Hi.
Please while having a *Promise exposed out of a js runtime environment into golang one in case of PromiseStatePending what would be the best option to wait/subscribe for event once it is naturally resolved/rejected within the initial runtime? (Except of just a periodical state check)

E.g.

        value, err := vm.RunString(`
			new Promise(resolve  => setTimeout(resolve, 1000))
	`)
	if err != nil {
		panic(err)
	}
	if p, ok := value.Export().(*goja.Promise); ok {
		switch p.State() {
		case goja.PromiseStateRejected:
			panic(p.Result().String())
		case goja.PromiseStateFulfilled:
			result = p.Result().Export()
		default:
			// how to get notified once it is resolved/rejected 
		}
	}

For the very same reason please clarify from the docs of NewPromise

The returned values are not goroutine-safe and must not be called in parallel with VM running. In order to make use of this method you need an event loop

Do I see it right that runtime.RunString and all the similar handles its own event loop under the hood. And once runtime.RunString execution is ended (returned a value) whether underling event loop still keep on further processing?

Thnx

[gastraight]

P.S. I mean whether it is possible to subscribe to a state change purely on a golang side without extra hack wrapping at js as

new Promise(resolve  => setTimeout(resolve, 1000)).then(goResolver, goRejector)