1 people like it.

genner thing

test

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module thingy =

  let isSumPossible (target :int) (ints : int list)= 
    let head, tail = 
      match ints with 
      | x::xs -> x,xs
      | [] -> 0,List.empty
    let combos = 
      tail 
      |> List.map (fun i -> head,i )
      |> List.filter (fun (i,j) -> (i+j) = target)
    combos 
    |> List.length 
    |> (<>) 0

  let testRandom () =
    let rand = new System.Random()
    let amount = rand.Next(100);
    let sum = rand.Next();	
    let ints = List.init amount (fun i -> rand.Next())
    ints
    |> isSumPossible sum
	
	
val isSumPossible : target:int -> ints:int list -> bool

Full name: Script.thingy.isSumPossible
val target : int
Multiple items
val int : value:'T -> int (requires member op_Explicit)

Full name: Microsoft.FSharp.Core.Operators.int

--------------------
type int = int32

Full name: Microsoft.FSharp.Core.int

--------------------
type int<'Measure> = int

Full name: Microsoft.FSharp.Core.int<_>
val ints : int list
type 'T list = List<'T>

Full name: Microsoft.FSharp.Collections.list<_>
val head : int
val tail : int list
val x : int
val xs : int list
Multiple items
module List

from Microsoft.FSharp.Collections

--------------------
type List<'T> =
  | ( [] )
  | ( :: ) of Head: 'T * Tail: 'T list
  interface IEnumerable
  interface IEnumerable<'T>
  member Head : 'T
  member IsEmpty : bool
  member Item : index:int -> 'T with get
  member Length : int
  member Tail : 'T list
  static member Cons : head:'T * tail:'T list -> 'T list
  static member Empty : 'T list

Full name: Microsoft.FSharp.Collections.List<_>
val empty<'T> : 'T list

Full name: Microsoft.FSharp.Collections.List.empty
val combos : (int * int) list
val map : mapping:('T -> 'U) -> list:'T list -> 'U list

Full name: Microsoft.FSharp.Collections.List.map
val i : int
val filter : predicate:('T -> bool) -> list:'T list -> 'T list

Full name: Microsoft.FSharp.Collections.List.filter
val j : int
val length : list:'T list -> int

Full name: Microsoft.FSharp.Collections.List.length
val testRandom : unit -> bool

Full name: Script.thingy.testRandom
val rand : System.Random
namespace System
Multiple items
type Random =
  new : unit -> Random + 1 overload
  member Next : unit -> int + 2 overloads
  member NextBytes : buffer:byte[] -> unit
  member NextDouble : unit -> float

Full name: System.Random

--------------------
System.Random() : unit
System.Random(Seed: int) : unit
val amount : int
System.Random.Next() : int
System.Random.Next(maxValue: int) : int
System.Random.Next(minValue: int, maxValue: int) : int
val sum : int
val init : length:int -> initializer:(int -> 'T) -> 'T list

Full name: Microsoft.FSharp.Collections.List.init
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More information

Link:http://fssnip.net/q5
Posted:4 years ago
Author:chet
Tags: meh