System.Collections.Async.IAsyncEnumerableExtensions
Extension methods for IAsyncEnumerable<T> interface
public static Task<TSource> FirstAsync<TSource>(this IAsyncEnumerable<TSource> source, CancellationToken token = default)
Returns the first element in the IAsyncEnumerable<T>.
public static Task<TSource> FirstAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, bool> predicate, CancellationToken token = default)
Returns the first element in a sequence that satisfies a specified condition.
public static Task<TSource> FirstOrDefaultAsync<TSource>(this IAsyncEnumerable<TSource> source, CancellationToken token = default)
Returns the first element in the IAsyncEnumerable<T>, or a default value if no element is found.
public static Task<TSource> FirstOrDefaultAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, bool> predicate, CancellationToken token = default)
Returns the first element in a sequence that satisfies a specified condition, or a default value if no element is found.
public static IAsyncEnumerable<TResult> Select<TSource, TResult>(this IAsyncEnumerable<TSource> source, Func<TSource, TResult> selector)
Projects each element of a sequence into a new form.
public static IAsyncEnumerable<TResult> Select<TSource, TResult>(this IAsyncEnumerable<TSource> source, Func<TSource, long, TResult> selector)
Projects each element of a sequence into a new form.
public static IAsyncEnumerable<TSource> Skip<TSource>(this IAsyncEnumerable<TSource> source, int count)
An IAsyncEnumerable<T> to return elements from.
public static IAsyncEnumerable<TSource> SkipWhile<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, bool> predicate)
Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.
public static IAsyncEnumerable<TSource> Take<TSource>(this IAsyncEnumerable<TSource> source, int count)
Returns a specified number of contiguous elements from the start of a sequence.
public static IAsyncEnumerable<TSource> TakeWhile<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, bool> predicate)
Returns elements from a sequence as long as a specified condition is true.
public static Task<T[]> ToArrayAsync<T>(this IAsyncEnumerable<T> source, CancellationToken cancellationToken = default)
Creates an array of elements asynchronously from the enumerable source
public static Task<List<T>> ToListAsync<T>(this IAsyncEnumerable<T> source, CancellationToken cancellationToken = default)
Creates a list of elements asynchronously from the enumerable source
public static IAsyncEnumerable<TSource> Where<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, bool> predicate)
Filters a sequence of values based on a predicate.
public static IAsyncEnumerable<TSource> Where<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, long, bool> predicate)
Projects each element of a sequence into a new form.