Question

I have following code that populates a System.Collections.Generic.List I don’t like it so I was wondering if there is a better way to do this.

let getDirectories = 
        Directory.GetDirectories(_baseFolder)
let languagesList = new System.Collections.Generic.List<string>()
Seq.cast getDirectories 
|> Seq.map(fun dir -> (new DirectoryInfo(dir)).Name) 
|> fun range -> languagesList.AddRange(range)

Answer 1

Have you tried:

let list = new System.Collections.Generic.List<string>(arr)

List<'T> has a constructor that takes an IEnumerable<'T> so it happily takes any seq<'T> you pass to it.