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M_CodeJam_ValueOption_With__2_1

Andrew Koryavchenko edited this page Jun 17, 2018 · 5 revisions

ValueOption.With(T, TResult) Method (ValueOption(T), Func(T, TResult), Func(TResult))

Converts option value to another option with selectFunc.

Namespace: CodeJam
Assembly: CodeJam (in CodeJam.dll) Version: 2.1.0.0

Syntax

C#

public static ValueOption<TResult> With<T, TResult>(
	this ValueOption<T> option,
	Func<T, TResult> selectFunc,
	Func<TResult> defaultFunc
)

VB

<ExtensionAttribute>
Public Shared Function With(Of T, TResult) ( 
	option As ValueOption(Of T),
	selectFunc As Func(Of T, TResult),
	defaultFunc As Func(Of TResult)
) As ValueOption(Of TResult)

F#

[<ExtensionAttribute>]
static member With : 
        option : ValueOption<'T> * 
        selectFunc : Func<'T, 'TResult> * 
        defaultFunc : Func<'TResult> -> ValueOption<'TResult> 

Parameters

 

option
Type: CodeJam.ValueOption(T)
ValueOption instance to match.
selectFunc
Type: System.Func(T, TResult)
Function to map value
defaultFunc
Type: System.Func(TResult)
Function to return default value.

Type Parameters

 

T
Type of value
TResult
Type of result

Return Value

Type: ValueOption(TResult)
Converted by selectFunc value, or option with value returned by defaultFunc, if option has no value.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type ValueOption(T). When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

See Also

Reference

ValueOption Class
With Overload
CodeJam Namespace

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