Basic Lambdas and Explicit Tail Calls Repackaged

[Breton Slivka]

On Mon, Dec 8, 2008 at 6:35 PM, Brendan Eich <brendan at mozilla.com> wrote:
> (if we have
> such, and we think we should, because the JS expression language is too weak
> as Jon Zeppieri colorfully asserts).

What would it take to make javascript's expressions rich enough to be
suitable for use as a lambda body, in opposition to blocks?