ES6 doesn't need opt-in

Allen Wirfs-Brock allen at
Wed Jan 4 12:50:29 PST 2012

On Jan 4, 2012, at 12:16 PM, Brendan Eich wrote:

> ...
> Any new Harmony syntax that presents no backward incompatibility *and* has a body opts the body into the new edition, a superset of ES5-strict.

Including expression level bodies such a block lambda's or Dave's do { } expressions, if they are adopted??


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