how to iterate over an AA by key-value pair (tuple)?

[timotheecour]

On Thursday, 13 February 2014 at 23:56:35 UTC, Timothee Cour
wrote:
> how to iterate over an AA by key-value pair (tuple)?
> use case:
> avoid interrupting UFCS chains, eg:
> foo.generate_aa.byKeyValue.filter!(a=>a[0].isLower).map!(a=>a[1]) 
> ...
> of course I could roll my own function but I was wondering if 
> there's
> already a way.


is there anything more efficient than this?

auto byKeyValue(T)(T a)if(isAssociativeArray!T){
    return a.byKey.map!(b=>tuple(b, a[b]));
}