Method CompareCount

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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 <code>result</code> variable will contain <code>1</code>.
Exceptions
Type Condition
ArgumentNullException

first is null
ArgumentNullException

second is null