Working with promises inside an if/else

Question

I have a conditional statement in which I need to perform one of two operations, then continue after whichever operation has resolved. So my code currently looks as follows:

Answer 1

Simple working example:

The scope it's defined in must be async.

const createUser = async (data) => {
   if (await isUsernameTaken(username)) { return 'username-taken' }
}

The isUsernameTaken func:

const isUsernameTaken = async (username) => {
    const request = await API.SomeRequest
    return !request.isEmpty
}