F# Delegates

by Online Tutorials Library July 14, 2022

F# Delegate

In F#, delegates are reference types. It allows us to call function as an object. It is a feature of this language. It gives advantage over the other functional programming languages.

The syntax of Delegate in F# language is given below:

F# Delegate Example

  type Deligate() =    static member mul(a : int, b : int) =       a * b    member x.Mul(a : int, b : int) =       a * b  type Multiply = delegate of (int * int) -> int  let getIt (d : Multiply) (a : int) (b: int) =     d.Invoke(a, b)  let d : Multiply = new Multiply( Deligate.mul )  for (a, b) in [(5, 8) ] do    printfn “%d * %d = %d” a b (getIt d a b)  

Output:

5 * 8 = 40

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