merge(op, nt1, nt2, ...)

[cossio]

I think it would be nice to have a merge method (for NamedTuples) that took a function op as a first argument and the combined values using f to form the resulting NamedTuple.

For example, it could be implemented like this:

merge(op, nt::NamedTuple{K,V}...) where {K,V} = NamedTuple{K}(op.(values.(nt)...))

[tkf]

Let's track this issue in #36048.