[cehrlich]

As an added benefit, `for...of` works with async, unlike forEach.

[dragonwriter]

If I would be tempted to use forEach but can’t because async, I usually don’t want for…of semantics, though. I probably want something like

  await Promise.all(collection.map(thing => some_async_function(thing)));

instead of:

  for thing of collection {
    await some_async_function(thing);
  }