Re: [Web Speech API] Speech utterance example missing "new" keyword, and what should be the return value of the constructor when called as a function?

Seeing no response, I filed the bug here:
https://www.w3.org/Bugs/Public/show_bug.cgi?id=21744

On Apr 3, 2013, at 4:53 PM, James Craig <jcraig@apple.com> wrote:

> Speech utterance example missing "new" keyword.
> https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html#examples-synthesis
> 
>> speechSynthesis.speak(SpeechSynthesisUtterance('Hello World'));
> 
> 
> should be:
> 
>> speechSynthesis.speak(new SpeechSynthesisUtterance('Hello World'));
> 
> As it is currently written, it will throw a ~"constructor is not a function" error in WebKit. 
> 
> The working group might wish to consider if you want the constructor to return a value when called without the new keyword. For example, Date() returns a string value for the current datetime, or a Date object if prefixed with the “new" keyword. 
> 
> > Date()
> "Wed Apr 03 2013 16:40:46 GMT-0700 (PDT)"
> > new Date()
> Wed Apr 03 2013 16:40:46 GMT-0700 (PDT)
> 
> > typeof Date()
> string
> > typeof new Date()
> object
> 
> I’d lean toward making SpeechSynthesisUtteranceConstructor, when called as a function, return a SpeechSynthesisUtterance instance (effectively making the new keyword optional) but I don’t believe the current spec allows this. I may be wrong.
> 
> Thanks,
> James Craig
>