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Operators.fst<'T1,'T2> Function (F#)

Den Delimarsky|Last Updated: 8/18/2017
1 Contributor

Return the first element of a tuple, fst (a,b) = a.

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

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


// Signature:
fst : 'T1 * 'T2 -> 'T1

// Usage:
fst tuple


tuple Type: 'T1 * 'T2

The input tuple.

Return Value

The first value.


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


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

Core.Operators Module (F#)

Microsoft.FSharp.Core Namespace (F#)

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