how to get a resolve value in a promise? about goja HOT 3 OPEN

Export to promise

func main() {
	vm := goja.New()
	_, err := vm.RunString(`
			async function sum(a, b) {
    			return a+b;
			}
	`)
	if err != nil {
		panic(err)
	}
	add, ok := goja.AssertFunction(vm.Get("sum"))
	if !ok {
		panic("not a function")
	}

	value, _ := add(goja.Undefined(), vm.ToValue(40), vm.ToValue(2))

	var result any
	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:
			panic("unexpected promise state pending")
		}
	}

	fmt.Println(result)
}

from goja.

Export to promise

func main() {
	vm := goja.New()
	_, err := vm.RunString(`
			async function sum(a, b) {
    			return a+b;
			}
	`)
	if err != nil {
		panic(err)
	}
	add, ok := goja.AssertFunction(vm.Get("sum"))
	if !ok {
		panic("not a function")
	}

	value, _ := add(goja.Undefined(), vm.ToValue(40), vm.ToValue(2))

	var result any
	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:
			panic("unexpected promise state pending")
		}
	}

	fmt.Println(result)
}

I would like to ask a question，the promise is async，so in goja in golang it is sync？If the execution is not completed when the results are obtained，it is true？

from goja.

Export to promise

func main() {
	vm := goja.New()
	_, err := vm.RunString(`
			async function sum(a, b) {
    			return a+b;
			}
	`)
	if err != nil {
		panic(err)
	}
	add, ok := goja.AssertFunction(vm.Get("sum"))
	if !ok {
		panic("not a function")
	}

	value, _ := add(goja.Undefined(), vm.ToValue(40), vm.ToValue(2))

	var result any
	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:
			panic("unexpected promise state pending")
		}
	}

	fmt.Println(result)
}

I would like to ask a question，the promise is async，so in goja in golang it is sync？If the execution is not completed when the results are obtained，it is true？

It's async, you can also see

from goja.