Determines whether the first sequence contains any of the elements of the second sequence, optionally using a custom equality comparer.

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• Definition
• Overloads
• ContainsAny(IEnumerable target)
• ContainsAny(IEnumerable target, IEqualityComparer? comparer)

Determines whether source sequence contains any of the elements of target sequence using the default comparer.

public static bool ContainsAny<TSource>(this IEnumerable<TSource> source, IEnumerable<TSource> target);

TSource
The type of the elements of source

source IEnumerable <TSource>
A sequence to check if contains any element of the target.

target IEnumerable <TSource>
A sequence to check if any of its elements are contained in source.

Boolean

true source contains any element of the target sequence, false otherwise.

ArgumentNullException
source is null

-or-

target is null

The following code example demonstrates how to use ContainsAny(IEnumerable target) to determine if source contains any elements of the target sequence.

var source = new int[]{ 1, 2, 3, 4, 5 };
var target = new int[]{ 1, 2, 6 };

source.ContainsAny(target);
//=> true

Determines whether source sequence contains any of the elements of target sequence using an optional custom equality comparer.

public static bool ContainsAny<TSource>(this IEnumerable<TSource> source, IEnumerable<TSource> target, IEqualityComparer<TSource>? comparer);

TSource
The type of the elements of source

source IEnumerable <TSource>
A sequence to check if contains any element of the target.

target IEnumerable <TSource>
A sequence to check if any of its elements are contained in source.

comparerIEqualityComparer
An equality comparer to compare values.

Boolean

true source contains any element of the target sequence, false otherwise.

ArgumentNullException
source is null

-or-

target is null

The following code example demonstrates how to use ContainsAny(IEnumerable target) to determine if source contains any elements of the target sequence.

var source = new string[]{ "a", "b", "c" };
var target = new string[]{ "a", "B", "Ducks" };

source.ContainsAny(target, StringComparer.OrdinalIgnoreCase);
//=> true