> On Apr 1, 2012, at 12:34 AM, Axel Rauschmayer wrote:
>
>>>> Ah, good. But one can use the above (pseudo-)desugaring to predict the
>>>> behavior of arrow functions, right? That is, there is no observable
>>>> difference.
>>>
>>> There is, again, the difference in terms of delegation to the target's
>>> [[Construct]] in case of a bound function, see the spec ("bound" per ES5,
>>> of course, since, as Brendan notices, it's not just a syntactic sugar, but
>>> a new special type of functions).
>>
>> OK. Ignoring [[Construct]] and .prototype, any other differences?
>
> Well, "ES5-bounds" also do not have `prototype' property, but delegate to the
> target's `prototype'. However, yes, there is the (main) difference in respect
> of supporting TCP (if I understand correctly, since had no time to follow the
> complete thread) -- return and break/continue jumps to the parent frame
> instead of working with the function itself.
Arrow functions do not adhere to TCP. Everything you need to know is here:
http://wiki.ecmascript.org/doku.php?id=strawman:arrow_function_syntax
--
Dr. Axel Rauschmayer
[email protected]
home: rauschma.de
twitter: twitter.com/rauschma
blog: 2ality.com
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