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Extension Methods: Utilities / Enumerables

TL;DR — This page mirrors the Utilities / Enumerables section from Extension Methods as a focused reference.

When to use

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C# (CAC) usage

AsSingle<TItem>

Source file, signature, and docstring

Member EnumerableExtensions.AsSingle<TItem>(this IEnumerable<TItem> enumerable)

Kind function

Declaring Type EnumerableExtensions (extension type)

Source File QaaS.Framework.SDK/Extensions/EnumerableExtensions.cs

Signature 

public static TItem AsSingle<TItem>(this IEnumerable<TItem> enumerable)

Docstring

Returns the single item contained in the provided sequence.

The helper enforces the invariant that exactly one item must be present and throws when the sequence is empty or contains more than one value.

Edge cases

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See also