Method CountBetween

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CountBetween<T>(IAsyncEnumerable<T>, int, int, CancellationToken)

Determines whether or not the number of elements in the sequence is between an inclusive range of minimum and maximum integers.

Declaration
public static ValueTask<bool> CountBetween<T>(this IAsyncEnumerable<T> source, int min, int max, CancellationToken cancellationToken = default)
Parameters
Type Name Description
IAsyncEnumerable<T> source

The source sequence
int min

The minimum number of items a sequence must have for this function to return true
int max

The maximum number of items a sequence must have for this function to return true
CancellationToken cancellationToken

The optional cancellation token to be used for cancelling the sequence at any time.
Returns
Type Description
ValueTask<bool>

true if the number of elements in the sequence is between (inclusive) the min and max given integers or false otherwise.
Type Parameters
Name Description
T

Element type of sequence
Examples
var numbers = new[] { 123, 456, 789 };
var result = numbers.CountBetween(1, 2);
    The <code>result</code> variable will contain <a href="https://learn.microsoft.com/dotnet/csharp/language-reference/builtin-types/bool">false</a>.
Exceptions
Type Condition
ArgumentNullException

source is null
ArgumentOutOfRangeException

min is negative or max is less than min