There's no need to use map/collect here - "each" should do just fine:
persons.each(function(p){ p.active = true });
or a plain loop if "each" is too slow:
for (var i=persons.length; i--;) {
persons[i].active = true;
}
P.S. Questions like this are better to be asked at
http://groups.google.com/group/rubyonrails-spinoffs
Best,
kangax
On Apr 29, 6:49 am, Xabi <[EMAIL PROTECTED]> wrote:
> I've an array of Json objects
>
> var persons= [ {name:'peter', age:33}, {name:'john', age:27}, ..... ];
>
> I want to extend every item with a new property with the same value,
> by example, active:true
>
> [ {name:'peter', age:33, active:true}, {name:'john', age:27,
> active:true}, ..... ]
>
> Now, I do
>
> persons=persons.collect(function(p) {
> p.active=true;
> return p;
>
> })
>
> I think it does't the best method. Is there other more efficient
> method? (the array is about 1000 length)
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