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Re: Binary data (ByteArray/ByteVector) proposal on public-script-coord

From: Alex Russell <alex@dojotoolkit.org>
Date: Fri, 6 Nov 2009 13:39:06 -0800
Cc: P T Withington <ptw@pobox.com>, public-script-coord@w3.org, es-discuss Steen <es-discuss@mozilla.org>
Message-Id: <39C28531-FFE2-4561-8C9B-65A910EFB9F9@dojotoolkit.org>
To: Maciej Stachowiak <mjs@apple.com>
On Nov 6, 2009, at 11:30 AM, Maciej Stachowiak wrote:

>
> On Nov 6, 2009, at 5:43 AM, P T Withington wrote:
>
>> On 2009-11-05, at 19:42, Maciej Stachowiak wrote:
>>
>>> My claim is that Data is not much like these things. I believe it  
>>> is more like String. It happens to be a sequence (of a very  
>>> specific type), but it's specialized enough to be worth treating  
>>> differently. Do people often regret that String is not an Array?
>>
>> Data is like an 8-bit "null encoded" String.  Which makes me wonder  
>> if you really just want to extend String to allow different  
>> encodings.  But I also regret String not being and Array.  Others  
>> must have too, because at one point I'm sure there was a proposal  
>> to make [] on string mean charAt?
>
> ES5 does have bracket index access to the individual characters. But  
> it does not make String inherit from Array.prototype, or add all of  
> the Array methods. To make it more concrete, have you ever wished  
> you could use methods like map(), filter(), reduce() or join() on a  
> String?

join's an oddball since it's effectively a no-op, but map() and  
filter(), absolutely.
Received on Friday, 6 November 2009 21:39:44 UTC

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