ImmutableArrayExtensions.First Method

Definition

Namespace:

System.Linq

Assembly:

System.Collections.Immutable.dll

Overloads

First<T>(ImmutableArray<T>)	Returns the first element in an array.
First<T>(ImmutableArray<T>.Builder)	Returns the first element in the collection.
First<T>(ImmutableArray<T>, Func<T,Boolean>)	Returns the first element in a sequence that satisfies a specified condition.

First<T>(ImmutableArray<T>)

Source:

ImmutableArrayExtensions.cs

Returns the first element in an array.

C#

public static T First<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 to get an item from.

Returns

T

The first item in the array.

Exceptions

InvalidOperationException

If the array is empty.

First<T>(ImmutableArray<T>.Builder)

Source:

ImmutableArrayExtensions.cs

Returns the first element in the collection.

C#

public static T First<T>(this System.Collections.Immutable.ImmutableArray<T>.Builder builder);

Type Parameters

T

The type of items in the array.

Parameters

builder

ImmutableArray<T>.Builder

The builder to retrieve an item from.

Returns

T

The first item in the list.

Exceptions

InvalidOperationException

If the array is empty.

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

Source:

ImmutableArrayExtensions.cs

Returns the first element in a sequence that satisfies a specified condition.

C#

public static T First<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 an item from.

predicate

Func<T,Boolean>

The delegate that defines the conditions of the element to search for.

Returns

T

The first item in the list if it meets the condition specified by predicate.

Exceptions

InvalidOperationException

If the array is empty.