F# getting a list of random numbers

Question

I am trying to fill a list with random numbers and am having diffculty getting the random number part. What I have right now prints out a random number 10 times, what I want is to print out 10 different random numbers

   let a = (new System.Random()).Next(1, 1000)


   let listOfSquares = [ for i in 1 .. 10->a]
    printfn "%A" listOfSquares

any tips or suggestions?

Answer 1

Your code is simply getting one random number and using it ten times.

This extension method might be useful:

type System.Random with
    /// Generates an infinite sequence of random numbers within the given range.
    member this.GetValues(minValue, maxValue) =
        Seq.initInfinite (fun _ -> this.Next(minValue, maxValue))

Then you can use it like this:

let r = System.Random()
let nums = r.GetValues(1, 1000) |> Seq.take 10