Seq.map2<'T1,'T2,'U> Function (F#)

Creates a new collection whose elements are the results of applying the given function to the corresponding pairs of elements from the two sequences. If one input sequence is shorter than the other then the remaining elements of the longer sequence are ignored.

Namespace/Module Path: Microsoft.FSharp.Collections.Seq

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

// Signature:
Seq.map2 : ('T1 -> 'T2 -> 'U) -> seq<'T1> -> seq<'T2> -> seq<'U>

// Usage:
Seq.map2 mapping source1 source2

Parameters

• mapping
  Type: 'T1 -> 'T2 -> 'U

  A function to transform pairs of items from the input sequences.

• source1
  Type: seq<'T1>

  The first input sequence.

• source2
  Type: seq<'T2>

  The second input sequence.

Exceptions

Exception	Condition
ArgumentNullException	Thrown when either of the input sequences is null.

Return Value

The result sequence.

Remarks

This function is named Map2 in compiled assemblies. If you are accessing the function from a language other than F#, or through reflection, use this name.

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

Collections.Seq Module (F#)

Microsoft.FSharp.Collections Namespace (F#)