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71 lines
2.6 KiB
Markdown
71 lines
2.6 KiB
Markdown
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# Distinct<T, U> Method
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Enumerates distinct items in this collection as defined by the key *property*.
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## Definition
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**Namespace:** <a href="N_CapyKit_Extensions">CapyKit.Extensions</a>
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**Assembly:** CapyKit (in CapyKit.dll) Version: 1.0.0+6cdd805be49c3b769a116584ea6904955ecd820d
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**C#**
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``` C#
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public static IEnumerable<T> Distinct<T, U>(
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this IEnumerable<T> items,
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Func<T, U> property
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)
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```
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**VB**
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``` VB
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<ExtensionAttribute>
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Public Shared Function Distinct(Of T, U) (
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items As IEnumerable(Of T),
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property As Func(Of T, U)
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) As IEnumerable(Of T)
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```
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**C++**
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``` C++
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public:
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[ExtensionAttribute]
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generic<typename T, typename U>
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static IEnumerable<T>^ Distinct(
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IEnumerable<T>^ items,
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Func<T, U>^ property
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)
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```
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**F#**
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``` F#
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[<ExtensionAttribute>]
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static member Distinct :
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items : IEnumerable<'T> *
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property : Func<'T, 'U> -> IEnumerable<'T>
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```
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#### Parameters
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<dl><dt> <a href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1" target="_blank" rel="noopener noreferrer">IEnumerable</a>(T)</dt><dd>The items to act on.</dd><dt> <a href="https://learn.microsoft.com/dotnet/api/system.func-2" target="_blank" rel="noopener noreferrer">Func</a>(T, U)</dt><dd>The property.</dd></dl>
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#### Type Parameters
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<dl><dt /><dd>Generic type parameter of the parent object.</dd><dt /><dd>Generic type parameter property value.</dd></dl>
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#### Return Value
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<a href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1" target="_blank" rel="noopener noreferrer">IEnumerable</a>(T)
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An enumerator that allows foreach to be used to process distinct items in this collection.
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#### Usage Note
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In Visual Basic and C#, you can call this method as an instance method on any object of type <a href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1" target="_blank" rel="noopener noreferrer">IEnumerable</a>(T). When you use instance method syntax to call this method, omit the first parameter. For more information, see <a href="https://docs.microsoft.com/dotnet/visual-basic/programming-guide/language-features/procedures/extension-methods" target="_blank" rel="noopener noreferrer">
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Extension Methods (Visual Basic)</a> or <a href="https://docs.microsoft.com/dotnet/csharp/programming-guide/classes-and-structs/extension-methods" target="_blank" rel="noopener noreferrer">
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Extension Methods (C# Programming Guide)</a>.
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## See Also
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#### Reference
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<a href="T_CapyKit_Extensions_LINQExtensions">LINQExtensions Class</a>
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<a href="N_CapyKit_Extensions">CapyKit.Extensions Namespace</a>
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