Additional cascading Map/Set/WeakMap methods?

Brandon Benvie brandon at
Sun Jan 13 17:23:42 PST 2013

Personally, I've never used the result of `collection.delete` for anything
and I'm not confident that the use case exists. I just wanted to note what
was being lost by changing the return value.

On Sun, Jan 13, 2013 at 8:21 PM, Tab Atkins Jr. <jackalmage at>wrote:

> On Sun, Jan 13, 2013 at 5:14 PM, Brandon Benvie
> <brandon at> wrote:
> > delete is supposed to return whether the item was in the collection to
> > delete or not, which otherwise would require using has to check for
> before
> > deleting. I don't know how useful the functionality is, but wanted to
> note
> > it since it'd be lost with this change. Chaining `clear` is an easy
> > definitely though.
> Why would it require such? Are you expecting it to throw if you try to
> delete something that's not there?  Or just wanting to use delete() as
> a destructive sampling method on the Map?
> ~TJ
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