Operators.( <||| )<'T1,'T2,'T3,'U> Function (F#)

  • Article

Apply a function to three values, the values being a triple on the right, the function on the left

Namespace/Module Path: Microsoft.FSharp.Core.Operators

Assembly: FSharp.Core (in FSharp.Core.dll)

// Signature:
( <||| ) : ('T1 -> 'T2 -> 'T3 -> 'U) -> 'T1 * 'T2 * 'T3 -> 'U

// Usage:
func <||| (arg1, arg2, arg3)

Parameters

  • func
    Type: 'T1 -> 'T2 -> 'T3 -> 'U

    The function.

  • arg1
    Type: 'T1

    The first argument.

  • arg2
    Type: 'T2

    The second argument.

  • arg3
    Type: 'T3

    The third argument.

Return Value

The function result.

Example

The following code demonstrates the use of the <||| operator.

let append4 string1 string2 string3 = string1 + "." + string2 + "." + string3

// The <||| operator 
let result3 = append4 <||| ("abc", "def", "ghi")
printfn "append4 <||| (\"abc\", \"def\", \"ghi\") gives  %A" result3

append4 <||| ("abc", "def", "ghi") gives  "abc.def.ghi"

Platforms

Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2

Version Information

F# Core Library Versions

Supported in: 2.0, 4.0, Portable

See Also

Reference

Core.Operators Module (F#)

Microsoft.FSharp.Core Namespace (F#)