Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://morelinq.github.io/3.0/ref/api/html/M_MoreLinq_Extensions_ChooseExtension_Choose__2.htm below:

Applies a function to each element of the source sequence and returns a new sequence of result elements for source elements where the function returns a couple (2-tuple) having a true as its first element and result as the second.

MoreLinq (in MoreLinq.dll) Version: 3.0.0

public static IEnumerable<TResult> Choose<T, TResult>(
	this IEnumerable<T> source,
	Func<T, (bool IsSome, TResult , )> chooser
)

<ExtensionAttribute>
Public Shared Function Choose(Of T, TResult) ( 
	source As IEnumerable(Of T),
	chooser As Func(Of T, (IsSome As Boolean,  As TResult, ))
) As IEnumerable(Of TResult)

public:
[ExtensionAttribute]
generic<typename T, typename TResult>
static IEnumerable<TResult>^ Choose(
	IEnumerable<T>^ source, 
	Func<T, ValueTuple<bool, TResult>>^ chooser
)

[<ExtensionAttribute>]
static member Choose : 
        source : IEnumerable<'T> * 
        chooser : Func<'T, ValueTuple<bool, 'TResult>> -> IEnumerable<'TResult> 

source

Type: System.Collections.GenericIEnumerableT
The source sequence.

chooser

Type: SystemFuncT, ValueTupleBoolean, TResult
The function that is applied to each source element.

T

The type of the elements in source.

TResult

The type of the elements in the returned sequence.

Type:

A sequence

elements.

In Visual Basic and C#, you can call this method as an instance method on any object of type

. When you use instance method syntax to call this method, omit the first parameter. For more information, see

or

.

This method uses deferred execution semantics and streams its results.

var str = "O,l,2,3,4,S,6,7,B,9";
var xs = str.Split(',').Choose(s => (int.TryParse(s, out var n), n));

The

variable will be a sequence of the integers 2, 3, 4, 6, 7 and 9.

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4