await async

In https://javascript.info/async-await it states

Let’s emphasize: await literally suspends the function execution until the promise settles, and then resumes it with the promise result. That doesn’t cost any CPU resources, because the JavaScript engine can do other jobs in the meantime: execute other scripts, handle events, etc.

This is not clear enough. It must clarify that it just suspends the async function in which the await resides. It doesn't suspend the outer method if that doesn't await.

Therefore note that in this example "start 1" and "start 2" are logged before the resolution is logged.

Comienza con el artículo sobre async/await en javascript.info/async-await y revisa la sección que explica la suspensión causada por await. Aclara que solo se suspende la función async contenedora y, a continuación, incorpora el orden de registro observado en el ejemplo enlazado. Se considera terminado cuando la explicación distingue correctamente la función async de su llamador externo.