How do you work with IList <> in F #?

Question

I have a list of types IList<Effort>. The Force Model contains a float, called Amount. I would like to return the amount Amountfor the entire list in F #. How will this be achieved?

Answer 1

efforts |> Seq.sumBy (fun e -> e.Amount)

Answer 2

Simplified answers Seq.fold, pipelined Seq.foldand pipelined Seq.sumBy(I like the third option).

However, no one mentioned what the seq<'T>F # name is for IEnumerable<T>, so the module functions Seqwork on anyone IEnumerable, including ILists.

Answer 3

Seq.fold (fun acc (effort: Effort) -> acc + effort.Amount) 0.0 efforts

Answer 4

, , , . sepp2k , effort effort, ( effort.Amount, " ). :

efforts |> Seq.fold (fun acc effort -> acc + effort.Amount) 0.0  

effort, , efforts IList<Effort>. , , .