Hey ES6ers,
I'm currently implementing some of the ES6 support for the next version of
TypeScript. The part I'm looking at right now is generators and yield
expressions. So far we feel fairly comfortable with the grammar and understand
the implications of the [Yield] and
: Allen Wirfs-Brock [mailto:al...@wirfs-brock.com]
Sent: Thursday, November 13, 2014 3:57 PM
To: Cyrus Najmabadi
Cc: Jason Freeman; es-discuss list
Subject: Re: Grammar question about ArrowFormalParameters
On Nov 13, 2014, at 3:21 PM, Cyrus Najmabadi wrote:
Hey Allen,
We have a followup
, 2014 7:10 PM
To: Cyrus Najmabadi; Allen Wirfs-Brock
Cc: es-discuss list
Subject: RE: Grammar question about ArrowFormalParameters
Thanks Allen for answering all of our questions. I have a theory that I wanted
to run by you. It seems that the Yield and GeneratorParameter flags as a pair
have only
Perfect.
-- Cyrus
From: Allen Wirfs-Brock [mailto:al...@wirfs-brock.com]
Sent: Friday, November 14, 2014 9:21 AM
To: Cyrus Najmabadi
Cc: Jason Freeman; es-discuss list
Subject: Re: Grammar question about ArrowFormalParameters
On Nov 13, 2014, at 7:53 PM, Cyrus Najmabadi wrote
Hi,
I am reading the Symbol section of the ES6 spec (19.4), and my understanding is
that calling the Symbol constructor does *not* add an entry to the
GlobalSymbolRegistry. Is that correct?
For example:
var s1 = Symbol(foo);
var s2 = Symbol.for(foo);
In this example, s1 and s2 would be two
Ok. Thanks for confirming our read of the grammar. Is this shown on any
breaking changes list anywhere?
Thanks!
-- Cyrus
From: Leon Arnott [mailto:leonarn...@gmail.com]
Sent: Tuesday, February 17, 2015 5:04 AM
To: Cyrus Najmabadi
Cc: es-discuss
Subject: Re: ES6 grammar for for-loops
Hey ES-discuss,
Hi,
For the following code:
for (var i = 0 in {}) { }
We are trying to figure out what grammar productions allow the left hand side
of a for-in statement to have an initializer.
I notice that in the ES5 spec, the following productions can get you there:
IterationStatement :
...@gmail.com]
Sent: Wednesday, January 21, 2015 5:16 PM
To: Cyrus Najmabadi
Cc: Jason Freeman; es-discuss
Subject: Re: Question about Symbols and GlobalSymbolRegistry
Am I understanding correctly?
Yes. The argument to the Symbol constructor is just a descriptive string
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