> It's not clear to me why this, or your `Promise.throw`, is better than
>
> ```js
> somePromise.done(...)
> // or
> somePromise.then(...).done()
> ```
Not *much* better, I'd say, but IMO a `done` method which accepts a
callback overlaps too much with `then`, and a `done` method without a
callback just looks like a wart in need of removal. : )
Visually, to me, wrapping beats capping. But that's just me.
In the end, I like neither wrapping nor capping. In my own work I've
preferred to define conditions under which certain rejections are
interpreted as program errors, thereby avoiding the wrapping/capping issue
entirely. (I can elaborate if anyone's interested.)
{ Kevin }
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