no, generally `await` is the fulfilment of a promise already created. `foo()` returns a promise, and then the await triggers the ceding of control to the event

no, generally `await` is the fulfilment of a promise already created. `foo()` returns a promise, and then the await triggers the ceding of control to the event loop and allows the promise to progress. In the example you've shown, it is absolutely correct that the two promises must be sequentially awaited like that. The OP is talking about a situation where there is no dependency between x and y.