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Operators.defaultArg<'T> Function (F#)

Used to specify a default value for an optional argument in the implementation of a function.

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

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

// Signature:
defaultArg : 'T option -> 'T -> 'T

// Usage:
defaultArg arg defaultValue

arg

Type: 'T option

An option representing the argument.

defaultValue

Type: 'T

The default value of the argument.

The argument value. If it is None, the defaultValue is returned.

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

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

F# Core Library Versions

Supported in: 2.0, 4.0, Portable

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