Suggestion: Array.prototype.repeat

Mariusz Nowak medikoo+mozilla.org at medikoo.com
Tue Jan 3 06:19:33 PST 2012



Rick Waldron wrote:
> 
> On Tue, Jan 3, 2012 at 3:34 AM, Mariusz Nowak <
> medikoo+mozilla.org at medikoo.com> wrote:
> 
>>
>>
>> Rick Waldron wrote:
>> >
>> > On Mon, Jan 2, 2012 at 3:56 PM, Mariusz Nowak <
>> > medikoo+mozilla.org at medikoo.com> wrote:
>> >
>> >>
>> >> I like it, it indeed looks very logical, however it's a bit
>> controversial
>> >> that we need to create temporary array object to get one that we want.
>> >>
>> >
>> > Is the controversy editorial or fact, because the following methods are
>> > all
>> > specified to use a temporary, newly initialized Array internally:
>> >
>> > Array.prototype.concat
>> > Array.prototype.filter (...)
>> >
>>
>> Rick, you say that apart of output arrays this methods create some other
>> temporary arrays internally ?
>> I don't see anything like that in specification, where exactly is it
>> stated
>> ?
>>
> 
> 
> Array.prototype.concat
>  - http://es5.github.com/#x15.4.4.4 #2
> 
> Array.prototype.filter
>  - http://es5.github.com/#x15.4.4.20 #6
> 
> (...)
> 

Rick, those arrays become result of each method, they're not temporary.


-----
Mariusz Nowak

https://github.com/medikoo
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