Something like this?
srcArray = [10, 20, 30, 100, 60];
cmpArray = [10, 3, 25, 100];
var result = cmpArray.filter(function(item, index){
return srcArray.contains(item);
});
The result array would just contain elements that are in both arrays. You
could modify it to support different typs of arrays if you like.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of stratboy
Sent: Friday, November 12, 2010 6:16 AM
To: MooTools Users
Subject: [Moo] Re: A kind of 'intersection' object merge?
Well, merge does 2 things: override existing props, and eventually add the
new ones. I need only the override. So it's a 'subset' of the merge
functionality.
On 12 Nov, 11:35, Vito Tafuni <[email protected]> wrote:
> I think merge is not semantically correct!
> you are simply extracting from o2 using o1 like a template... where'
> the merge!?!
>
> At max I could expect from
> merge(o1,o2) -> { a:1, b:2, c:3, d:4, e:5 }
> merge(o2,o1) -> { a:1.2, b:2.2, c:3.2, d:4, e:5 }
>
> --
> -----------
> Tafuni Vito
> [email protected]
> ---------------------------------------------
> "Verba volant, scripta manent... data corrupted"
>
> 2010/11/12 stratboy <[email protected]>
>
> > Hi! Suppose this:
>
> > var o1 = { a:1, b:2, c:3 }
> > var o2 = { a:1.2, b:2.2, c:3.2, d:4, e:5 }
>
> > I want some kind of merge operation that merges only the props with
> > same key, so in the end I've got this:
>
> > var o3 = { a:1.2, b:2.2, c:3.2 }
>
> > I know I can do it with a couple of passages, for ex. by using
> > Object.subset first. Though, I'd like to know i there's some other
> > smart way. It would quite handy if in the future releases of
> > mootools there will be a thing like:
>
> > Object.merge(o1,o2[,true]);
>
> > where the last option is for using only the common keys or not.
>
> > :) How about?
