Use of promise for async requests in an array

api.js

async function LoadDefects(projectId) {
  const res = await restApi.query({
    type: "defects",
    scope: {
      workspace: "/workspace/275276784308",
      project: "/project/" + projectId
    }
  });
  let table = "<table>";
  await Promise.all(
    res.Results.map(async defect => {
      // readDefect is another Async function which returns a string
      table += await readDefect(defect);
    })
  );
  table += "</table>";
  return table;
}

LoadDefects(275276784740).then(res => {
  a = res;
  console.log(a);
});