totalsize.js

// pattern 1
await Promise.all(
  files.map(async file => {
    let fileSize = await getSize(file);
    totalSize += fileSize;
  })
);



// pattern 2
let fileSizes = await Promise.all(
  files.map(async file => getSize(file))
);

for (let fileSize of fileSizes) {
  totalSize += fileSize;
}



// Too Terse Too Unreadable 1
for (let fileSize of await Promise.all(files.map(getSize))) {
  totalSize += fileSize;
}



// Too Terse Too Unreadable 2
totalSize = (
  await Promise.all(files.map(getSize))
).reduce((t, s) => t + s, 0);