Method CompareCount

CompareCount<TFirst, TSecond>(IAsyncEnumerable<TFirst>, IAsyncEnumerable<TSecond>, CancellationToken)

Compares two sequences and returns an integer that indicates whether the first sequence has fewer, the same or more elements than the second sequence.

Declaration

public static ValueTask<int> CompareCount<TFirst, TSecond>(this IAsyncEnumerable<TFirst> first, IAsyncEnumerable<TSecond> second, CancellationToken cancellationToken = default)

Parameters

Type	Name	Description
IAsyncEnumerable<TFirst>	first	The first sequence
IAsyncEnumerable<TSecond>	second	The second sequence
CancellationToken	cancellationToken	The optional cancellation token to be used for cancelling the sequence at any time.

Returns

Type	Description
ValueTask<int>	-1 if the first sequence has the fewest elements, 0 if the two sequences have the same number of elements or 1 if the first sequence has the most elements.

Type Parameters

Name	Description
TFirst	Element type of the first sequence
TSecond	Element type of the second sequence

Examples

var first = new[] { 123, 456 };
var second = new[] { 789 };
var result = first.CompareCount(second);

The result variable will contain 1.

Exceptions

Type	Condition
ArgumentNullException	first is null
ArgumentNullException	second is null