ImmutableArrayExtensions.SingleOrDefault Method

Definition

Overloads

SingleOrDefault<T>(ImmutableArray<T>)

Returns the only element of the array, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.

SingleOrDefault<T>(ImmutableArray<T>, Func<T,Boolean>)

Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.

SingleOrDefault<T>(ImmutableArray<T>)

Source:
ImmutableArrayExtensions.cs
Source:
ImmutableArrayExtensions.cs
Source:
ImmutableArrayExtensions.cs
Source:
ImmutableArrayExtensions.cs

Returns the only element of the array, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.

public static T SingleOrDefault<T> (this System.Collections.Immutable.ImmutableArray<T> immutableArray);
public static T? SingleOrDefault<T> (this System.Collections.Immutable.ImmutableArray<T> immutableArray);

Type Parameters

T

The type of element contained by the collection.

Parameters

immutableArray
ImmutableArray<T>

The array.

Returns

T

The element in the array, or the default value if the array is empty.

Exceptions

source contains more than one element.

Applies to

.NET 9 and other versions
Product Versions
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8 (package-provided), 8, 9 (package-provided), 9
.NET Framework 4.7 (package-provided), 4.7.1 (package-provided), 4.7.2 (package-provided), 4.8 (package-provided)
.NET Standard 2.0 (package-provided)
UWP 10.0

SingleOrDefault<T>(ImmutableArray<T>, Func<T,Boolean>)

Source:
ImmutableArrayExtensions.cs
Source:
ImmutableArrayExtensions.cs
Source:
ImmutableArrayExtensions.cs
Source:
ImmutableArrayExtensions.cs

Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.

public static T SingleOrDefault<T> (this System.Collections.Immutable.ImmutableArray<T> immutableArray, Func<T,bool> predicate);
public static T? SingleOrDefault<T> (this System.Collections.Immutable.ImmutableArray<T> immutableArray, Func<T,bool> predicate);

Type Parameters

T

The type of element contained by the collection.

Parameters

immutableArray
ImmutableArray<T>

The array to get the element from.

predicate
Func<T,Boolean>

The condition the element must satisfy.

Returns

T

The element if it satisfies the specified condition; otherwise the default element.

Exceptions

More than one element satisfies the condition in predicate.

Applies to

.NET 9 and other versions
Product Versions
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8 (package-provided), 8, 9 (package-provided), 9
.NET Framework 4.7 (package-provided), 4.7.1 (package-provided), 4.7.2 (package-provided), 4.8 (package-provided)
.NET Standard 2.0 (package-provided)
UWP 10.0