const getPeeps = () => Promise.resolve([{name: 'Corbin', addr: 1}, {name: 'Nic', addr: 0}])
const getAddr = (val) => Promise.resolve(val ? 'My home' : 'Their home')

// Pure promise solution
getPeeps()
.then(people => {
  const peoplePromiseArr = people.map(person => {
    return getAddr(person.addr).then(addr => {
      person.addr = addr;
      return person;
    })
  });
  return Promise.all(peoplePromiseArr);
})
.then(console.log)

// That but using async/await
(async () => {
  const people = await getPeeps();
  const peoplePromiseArr = people.map(async person => {
    const addr = await getAddr(person.addr);
    person.addr = addr;
    return person;
  })
  const finalArr = await Promise.all(peoplePromiseArr);
  console.log(finalArr);
})()