More fun with undefined

[T.J. Crowder]

On 15 June 2012 12:41, Brendan Eich <brendan at mozilla.com> wrote:

> This isn't unrelated. If we do get patterns into Harmony they may subsume
> some of the postfix-?? (which does not work syntactically, IMHO) or
> prefix-? ideas. Or at least prefix-? may show up in the pattern language
> (dherman and I have discussed it).


I was talking about the discussion around making undefined non-redefinable.
Of the first 6 responses, one was about the original subject (having a
unary version of ??), the others were about whether undefined should be
redefinable. Different (and potentially useful) topic, in my view. Allen
even opened with "This is a different issue, but..."

-- T.J.
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