On 8/16/2013 12:56 PM, Allen Wirfs-Brock wrote:
However, I think throwing is like to reveal bugs that might otherwise
be missed prior to deployment and as a code reader I would prefer to
encounter
let {x=undefined) = {};
which communicates much more clearly that there is an expectation that
'x' may not exist as a property of the RHS.
I think this is true of assignment/declaration destructuring, but untrue
for parameter destructuring. I think a very common use case for
parameter destructuring is optional values in an options object. Given
that we want assignment destructuring and parameter destructuring to be
the same thing, I think that we have to allow soft-fail.
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