Description
TAccumulate Aggregate<TSource, TAccumulate>(this IEnumerable<TSource> source, TAccumulate seed, Func<TAccumulate, TSource, TAccumulate> func);TResult Aggregate<TSource, TAccumulate, TResult>(this IEnumerable<TSource> source, TAccumulate seed, Func<TAccumulate, TSource, TAccumulate> func, Func<TAccumulate, TResult> resultSelector);bool All<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);bool Any<TSource>(this IEnumerable<TSource> source);bool Any<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);IEnumerable<TSource> Append<TSource>(this IEnumerable<TSource> source, TSource element);IEnumerable<TSource> AsEnumerable<TSource>(this IEnumerable<TSource> source);double Average<TSource>(this IEnumerable<TSource> source, Func<TSource, int> selector);double Average<TSource>(this IEnumerable<TSource> source, Func<TSource, long> selector);double? Average<TSource>(this IEnumerable<TSource> source, Func<TSource, double?> selector);float Average<TSource>(this IEnumerable<TSource> source, Func<TSource, float> selector);double? Average<TSource>(this IEnumerable<TSource> source, Func<TSource, long?> selector);float? Average<TSource>(this IEnumerable<TSource> source, Func<TSource, float?> selector);double Average<TSource>(this IEnumerable<TSource> source, Func<TSource, double> selector);double? Average<TSource>(this IEnumerable<TSource> source, Func<TSource, int?> selector);decimal Average<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal> selector);decimal? Average<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal?> selector);float? Average(this IEnumerable<float?> source);double? Average(this IEnumerable<long?> source);double? Average(this IEnumerable<int?> source);double? Average(this IEnumerable<double?> source);decimal? Average(this IEnumerable<decimal?> source);double Average(this IEnumerable<long> source);double Average(this IEnumerable<int> source);double Average(this IEnumerable<double> source);decimal Average(this IEnumerable<decimal> source);float Average(this IEnumerable<float> source);IEnumerable<TResult> Cast<TResult>(this IEnumerable source);IEnumerable<TSource[]> Chunk<TSource>(this IEnumerable<TSource> source, int size);IEnumerable<TSource> Concat<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second);bool Contains<TSource>(this IEnumerable<TSource> source, TSource value, IEqualityComparer<TSource>? comparer);bool Contains<TSource>(this IEnumerable<TSource> source, TSource value);int Count<TSource>(this IEnumerable<TSource> source);int Count<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);IEnumerable<TSource?> DefaultIfEmpty<TSource>(this IEnumerable<TSource> source);IEnumerable<TSource> DefaultIfEmpty<TSource>(this IEnumerable<TSource> source, TSource defaultValue);IEnumerable<TSource> Distinct<TSource>(this IEnumerable<TSource> source);IEnumerable<TSource> Distinct<TSource>(this IEnumerable<TSource> source, IEqualityComparer<TSource>? comparer);IEnumerable<TSource> DistinctBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);IEnumerable<TSource> DistinctBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer);TSource ElementAt<TSource>(this IEnumerable<TSource> source, Index index);TSource ElementAt<TSource>(this IEnumerable<TSource> source, int index);TSource? ElementAtOrDefault<TSource>(this IEnumerable<TSource> source, Index index);TSource? ElementAtOrDefault<TSource>(this IEnumerable<TSource> source, int index);IEnumerable<TResult> Empty<TResult>();IEnumerable<TSource> Except<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second);IEnumerable<TSource> Except<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second, IEqualityComparer<TSource>? comparer);IEnumerable<TSource> ExceptBy<TSource, TKey>(this IEnumerable<TSource> first, IEnumerable<TKey> second, Func<TSource, TKey> keySelector);IEnumerable<TSource> ExceptBy<TSource, TKey>(this IEnumerable<TSource> first, IEnumerable<TKey> second, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer);TSource First<TSource>(this IEnumerable<TSource> source);TSource First<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);TSource? FirstOrDefault<TSource>(this IEnumerable<TSource> source);TSource FirstOrDefault<TSource>(this IEnumerable<TSource> source, TSource defaultValue);TSource? FirstOrDefault<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);TSource FirstOrDefault<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate, TSource defaultValue);IEnumerable<TResult> GroupBy<TSource, TKey, TElement, TResult>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, Func<TKey, IEnumerable<TElement>, TResult> resultSelector, IEqualityComparer<TKey>? comparer);IEnumerable<TResult> GroupBy<TSource, TKey, TElement, TResult>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, Func<TKey, IEnumerable<TElement>, TResult> resultSelector);IEnumerable<TResult> GroupBy<TSource, TKey, TResult>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TKey, IEnumerable<TSource>, TResult> resultSelector, IEqualityComparer<TKey>? comparer);IEnumerable<TResult> GroupBy<TSource, TKey, TResult>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TKey, IEnumerable<TSource>, TResult> resultSelector);IEnumerable<IGrouping<TKey, TSource>> GroupBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);IEnumerable<IGrouping<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector);IEnumerable<IGrouping<TKey, TSource>> GroupBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer);IEnumerable<IGrouping<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, IEqualityComparer<TKey>? comparer);IEnumerable<TResult> GroupJoin<TOuter, TInner, TKey, TResult>(this IEnumerable<TOuter> outer, IEnumerable<TInner> inner, Func<TOuter, TKey> outerKeySelector, Func<TInner, TKey> innerKeySelector, Func<TOuter, IEnumerable<TInner>, TResult> resultSelector, IEqualityComparer<TKey>? comparer);IEnumerable<TResult> GroupJoin<TOuter, TInner, TKey, TResult>(this IEnumerable<TOuter> outer, IEnumerable<TInner> inner, Func<TOuter, TKey> outerKeySelector, Func<TInner, TKey> innerKeySelector, Func<TOuter, IEnumerable<TInner>, TResult> resultSelector);IEnumerable<TSource> Intersect<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second, IEqualityComparer<TSource>? comparer);IEnumerable<TSource> Intersect<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second);IEnumerable<TSource> IntersectBy<TSource, TKey>(this IEnumerable<TSource> first, IEnumerable<TKey> second, Func<TSource, TKey> keySelector);IEnumerable<TSource> IntersectBy<TSource, TKey>(this IEnumerable<TSource> first, IEnumerable<TKey> second, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer);IEnumerable<TResult> Join<TOuter, TInner, TKey, TResult>(this IEnumerable<TOuter> outer, IEnumerable<TInner> inner, Func<TOuter, TKey> outerKeySelector, Func<TInner, TKey> innerKeySelector, Func<TOuter, TInner, TResult> resultSelector);IEnumerable<TResult> Join<TOuter, TInner, TKey, TResult>(this IEnumerable<TOuter> outer, IEnumerable<TInner> inner, Func<TOuter, TKey> outerKeySelector, Func<TInner, TKey> innerKeySelector, Func<TOuter, TInner, TResult> resultSelector, IEqualityComparer<TKey>? comparer);TSource Last<TSource>(this IEnumerable<TSource> source);TSource Last<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);TSource? LastOrDefault<TSource>(this IEnumerable<TSource> source);TSource LastOrDefault<TSource>(this IEnumerable<TSource> source, TSource defaultValue);TSource? LastOrDefault<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);TSource LastOrDefault<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate, TSource defaultValue);long LongCount<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);long LongCount<TSource>(this IEnumerable<TSource> source);long Max<TSource>(this IEnumerable<TSource> source, Func<TSource, long> selector);decimal Max<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal> selector);double Max<TSource>(this IEnumerable<TSource> source, Func<TSource, double> selector);int Max<TSource>(this IEnumerable<TSource> source, Func<TSource, int> selector);decimal? Max<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal?> selector);TSource? Max<TSource>(this IEnumerable<TSource> source, IComparer<TSource>? comparer);int? Max<TSource>(this IEnumerable<TSource> source, Func<TSource, int?> selector);long? Max<TSource>(this IEnumerable<TSource> source, Func<TSource, long?> selector);float? Max<TSource>(this IEnumerable<TSource> source, Func<TSource, float?> selector);TResult? Max<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector);double? Max<TSource>(this IEnumerable<TSource> source, Func<TSource, double?> selector);TSource? Max<TSource>(this IEnumerable<TSource> source);float Max<TSource>(this IEnumerable<TSource> source, Func<TSource, float> selector);float Max(this IEnumerable<float> source);float? Max(this IEnumerable<float?> source);long? Max(this IEnumerable<long?> source);int? Max(this IEnumerable<int?> source);double? Max(this IEnumerable<double?> source);decimal? Max(this IEnumerable<decimal?> source);long Max(this IEnumerable<long> source);int Max(this IEnumerable<int> source);double Max(this IEnumerable<double> source);decimal Max(this IEnumerable<decimal> source);TSource? MaxBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);TSource? MaxBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey>? comparer);decimal Min(this IEnumerable<decimal> source);TResult? Min<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector);float Min<TSource>(this IEnumerable<TSource> source, Func<TSource, float> selector);float? Min<TSource>(this IEnumerable<TSource> source, Func<TSource, float?> selector);int? Min<TSource>(this IEnumerable<TSource> source, Func<TSource, int?> selector);double? Min<TSource>(this IEnumerable<TSource> source, Func<TSource, double?> selector);decimal? Min<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal?> selector);long Min<TSource>(this IEnumerable<TSource> source, Func<TSource, long> selector);int Min<TSource>(this IEnumerable<TSource> source, Func<TSource, int> selector);decimal Min<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal> selector);TSource? Min<TSource>(this IEnumerable<TSource> source, IComparer<TSource>? comparer);TSource? Min<TSource>(this IEnumerable<TSource> source);long? Min<TSource>(this IEnumerable<TSource> source, Func<TSource, long?> selector);double Min<TSource>(this IEnumerable<TSource> source, Func<TSource, double> selector);float Min(this IEnumerable<float> source);float? Min(this IEnumerable<float?> source);long? Min(this IEnumerable<long?> source);int? Min(this IEnumerable<int?> source);double? Min(this IEnumerable<double?> source);decimal? Min(this IEnumerable<decimal?> source);double Min(this IEnumerable<double> source);long Min(this IEnumerable<long> source);int Min(this IEnumerable<int> source);TSource? MinBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey>? comparer);TSource? MinBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);IEnumerable<TResult> OfType<TResult>(this IEnumerable source);IOrderedEnumerable<TSource> OrderBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey>? comparer);IOrderedEnumerable<TSource> OrderBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);IOrderedEnumerable<TSource> OrderByDescending<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);IOrderedEnumerable<TSource> OrderByDescending<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey>? comparer);IEnumerable<TSource> Prepend<TSource>(this IEnumerable<TSource> source, TSource element);IEnumerable<int> Range(int start, int count);IEnumerable<TResult> Repeat<TResult>(TResult element, int count);IEnumerable<TSource> Reverse<TSource>(this IEnumerable<TSource> source);IEnumerable<TResult> Select<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, int, TResult> selector);IEnumerable<TResult> Select<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector);IEnumerable<TResult> SelectMany<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, int, IEnumerable<TResult>> selector);IEnumerable<TResult> SelectMany<TSource, TCollection, TResult>(this IEnumerable<TSource> source, Func<TSource, IEnumerable<TCollection>> collectionSelector, Func<TSource, TCollection, TResult> resultSelector);IEnumerable<TResult> SelectMany<TSource, TCollection, TResult>(this IEnumerable<TSource> source, Func<TSource, int, IEnumerable<TCollection>> collectionSelector, Func<TSource, TCollection, TResult> resultSelector);IEnumerable<TResult> SelectMany<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, IEnumerable<TResult>> selector);bool SequenceEqual<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second);bool SequenceEqual<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second, IEqualityComparer<TSource>? comparer);TSource Single<TSource>(this IEnumerable<TSource> source);TSource Single<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);TSource SingleOrDefault<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate, TSource defaultValue);TSource SingleOrDefault<TSource>(this IEnumerable<TSource> source, TSource defaultValue);TSource? SingleOrDefault<TSource>(this IEnumerable<TSource> source);TSource? SingleOrDefault<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);IEnumerable<TSource> Skip<TSource>(this IEnumerable<TSource> source, int count);IEnumerable<TSource> SkipLast<TSource>(this IEnumerable<TSource> source, int count);IEnumerable<TSource> SkipWhile<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);IEnumerable<TSource> SkipWhile<TSource>(this IEnumerable<TSource> source, Func<TSource, int, bool> predicate);int Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, int> selector);long Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, long> selector);decimal? Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal?> selector);long? Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, long?> selector);int? Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, int?> selector);double Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, double> selector);float? Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, float?> selector);float Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, float> selector);double? Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, double?> selector);decimal Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal> selector);long? Sum(this IEnumerable<long?> source);float? Sum(this IEnumerable<float?> source);int? Sum(this IEnumerable<int?> source);double? Sum(this IEnumerable<double?> source);decimal? Sum(this IEnumerable<decimal?> source);long Sum(this IEnumerable<long> source);int Sum(this IEnumerable<int> source);double Sum(this IEnumerable<double> source);decimal Sum(this IEnumerable<decimal> source);float Sum(this IEnumerable<float> source);IEnumerable<TSource> Take<TSource>(this IEnumerable<TSource> source, Range range);IEnumerable<TSource> Take<TSource>(this IEnumerable<TSource> source, int count);IEnumerable<TSource> TakeLast<TSource>(this IEnumerable<TSource> source, int count);IEnumerable<TSource> TakeWhile<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);IEnumerable<TSource> TakeWhile<TSource>(this IEnumerable<TSource> source, Func<TSource, int, bool> predicate);IOrderedEnumerable<TSource> ThenBy<TSource, TKey>(this IOrderedEnumerable<TSource> source, Func<TSource, TKey> keySelector);IOrderedEnumerable<TSource> ThenBy<TSource, TKey>(this IOrderedEnumerable<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey>? comparer);IOrderedEnumerable<TSource> ThenByDescending<TSource, TKey>(this IOrderedEnumerable<TSource> source, Func<TSource, TKey> keySelector);IOrderedEnumerable<TSource> ThenByDescending<TSource, TKey>(this IOrderedEnumerable<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey>? comparer);TSource[] ToArray<TSource>(this IEnumerable<TSource> source);Dictionary<TKey, TSource> ToDictionary<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector) where TKey : notnull;Dictionary<TKey, TSource> ToDictionary<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer) where TKey : notnull;Dictionary<TKey, TElement> ToDictionary<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector) where TKey : notnull;Dictionary<TKey, TElement> ToDictionary<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, IEqualityComparer<TKey>? comparer) where TKey : notnull;HashSet<TSource> ToHashSet<TSource>(this IEnumerable<TSource> source, IEqualityComparer<TSource>? comparer);HashSet<TSource> ToHashSet<TSource>(this IEnumerable<TSource> source);List<TSource> ToList<TSource>(this IEnumerable<TSource> source);ILookup<TKey, TElement> ToLookup<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, IEqualityComparer<TKey>? comparer);ILookup<TKey, TElement> ToLookup<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector);ILookup<TKey, TSource> ToLookup<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);ILookup<TKey, TSource> ToLookup<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer);bool TryGetNonEnumeratedCount<TSource>(this IEnumerable<TSource> source, out int count);IEnumerable<TSource> Union<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second);IEnumerable<TSource> Union<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second, IEqualityComparer<TSource>? comparer);IEnumerable<TSource> UnionBy<TSource, TKey>(this IEnumerable<TSource> first, IEnumerable<TSource> second, Func<TSource, TKey> keySelector);IEnumerable<TSource> UnionBy<TSource, TKey>(this IEnumerable<TSource> first, IEnumerable<TSource> second, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer);IEnumerable<TSource> Where<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);IEnumerable<TSource> Where<TSource>(this IEnumerable<TSource> source, Func<TSource, int, bool> predicate);IEnumerable<(TFirst First, TSecond Second, TThird Third)> Zip<TFirst, TSecond, TThird>(this IEnumerable<TFirst> first, IEnumerable<TSecond> second, IEnumerable<TThird> third);IEnumerable<(TFirst First, TSecond Second)> Zip<TFirst, TSecond>(this IEnumerable<TFirst> first, IEnumerable<TSecond> second);IEnumerable<TResult> Zip<TFirst, TSecond, TResult>(this IEnumerable<TFirst> first, IEnumerable<TSecond> second, Func<TFirst, TSecond, TResult> resultSelector); Reactions are currently unavailable
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TAccumulate Aggregate<TSource, TAccumulate>(this IEnumerable<TSource> source, TAccumulate seed, Func<TAccumulate, TSource, TAccumulate> func);TResult Aggregate<TSource, TAccumulate, TResult>(this IEnumerable<TSource> source, TAccumulate seed, Func<TAccumulate, TSource, TAccumulate> func, Func<TAccumulate, TResult> resultSelector);bool All<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);bool Any<TSource>(this IEnumerable<TSource> source);bool Any<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);IEnumerable<TSource> Append<TSource>(this IEnumerable<TSource> source, TSource element);IEnumerable<TSource> AsEnumerable<TSource>(this IEnumerable<TSource> source);double Average<TSource>(this IEnumerable<TSource> source, Func<TSource, int> selector);double Average<TSource>(this IEnumerable<TSource> source, Func<TSource, long> selector);double? Average<TSource>(this IEnumerable<TSource> source, Func<TSource, double?> selector);float Average<TSource>(this IEnumerable<TSource> source, Func<TSource, float> selector);double? Average<TSource>(this IEnumerable<TSource> source, Func<TSource, long?> selector);float? Average<TSource>(this IEnumerable<TSource> source, Func<TSource, float?> selector);double Average<TSource>(this IEnumerable<TSource> source, Func<TSource, double> selector);double? Average<TSource>(this IEnumerable<TSource> source, Func<TSource, int?> selector);decimal Average<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal> selector);decimal? Average<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal?> selector);float? Average(this IEnumerable<float?> source);double? Average(this IEnumerable<long?> source);double? Average(this IEnumerable<int?> source);double? Average(this IEnumerable<double?> source);decimal? Average(this IEnumerable<decimal?> source);double Average(this IEnumerable<long> source);double Average(this IEnumerable<int> source);double Average(this IEnumerable<double> source);decimal Average(this IEnumerable<decimal> source);float Average(this IEnumerable<float> source);IEnumerable<TResult> Cast<TResult>(this IEnumerable source);IEnumerable<TSource[]> Chunk<TSource>(this IEnumerable<TSource> source, int size);IEnumerable<TSource> Concat<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second);bool Contains<TSource>(this IEnumerable<TSource> source, TSource value, IEqualityComparer<TSource>? comparer);bool Contains<TSource>(this IEnumerable<TSource> source, TSource value);int Count<TSource>(this IEnumerable<TSource> source);int Count<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);IEnumerable<TSource?> DefaultIfEmpty<TSource>(this IEnumerable<TSource> source);IEnumerable<TSource> DefaultIfEmpty<TSource>(this IEnumerable<TSource> source, TSource defaultValue);IEnumerable<TSource> Distinct<TSource>(this IEnumerable<TSource> source);IEnumerable<TSource> Distinct<TSource>(this IEnumerable<TSource> source, IEqualityComparer<TSource>? comparer);IEnumerable<TSource> DistinctBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);IEnumerable<TSource> DistinctBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer);TSource ElementAt<TSource>(this IEnumerable<TSource> source, Index index);TSource ElementAt<TSource>(this IEnumerable<TSource> source, int index);TSource? ElementAtOrDefault<TSource>(this IEnumerable<TSource> source, Index index);TSource? ElementAtOrDefault<TSource>(this IEnumerable<TSource> source, int index);IEnumerable<TResult> Empty<TResult>();IEnumerable<TSource> Except<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second);IEnumerable<TSource> Except<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second, IEqualityComparer<TSource>? comparer);IEnumerable<TSource> ExceptBy<TSource, TKey>(this IEnumerable<TSource> first, IEnumerable<TKey> second, Func<TSource, TKey> keySelector);IEnumerable<TSource> ExceptBy<TSource, TKey>(this IEnumerable<TSource> first, IEnumerable<TKey> second, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer);TSource First<TSource>(this IEnumerable<TSource> source);TSource First<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);TSource? FirstOrDefault<TSource>(this IEnumerable<TSource> source);TSource FirstOrDefault<TSource>(this IEnumerable<TSource> source, TSource defaultValue);TSource? FirstOrDefault<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);TSource FirstOrDefault<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate, TSource defaultValue);IEnumerable<TResult> GroupBy<TSource, TKey, TElement, TResult>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, Func<TKey, IEnumerable<TElement>, TResult> resultSelector, IEqualityComparer<TKey>? comparer);IEnumerable<TResult> GroupBy<TSource, TKey, TElement, TResult>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, Func<TKey, IEnumerable<TElement>, TResult> resultSelector);IEnumerable<TResult> GroupBy<TSource, TKey, TResult>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TKey, IEnumerable<TSource>, TResult> resultSelector, IEqualityComparer<TKey>? comparer);IEnumerable<TResult> GroupBy<TSource, TKey, TResult>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TKey, IEnumerable<TSource>, TResult> resultSelector);IEnumerable<IGrouping<TKey, TSource>> GroupBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);IEnumerable<IGrouping<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector);IEnumerable<IGrouping<TKey, TSource>> GroupBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer);IEnumerable<IGrouping<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, IEqualityComparer<TKey>? comparer);IEnumerable<TResult> GroupJoin<TOuter, TInner, TKey, TResult>(this IEnumerable<TOuter> outer, IEnumerable<TInner> inner, Func<TOuter, TKey> outerKeySelector, Func<TInner, TKey> innerKeySelector, Func<TOuter, IEnumerable<TInner>, TResult> resultSelector, IEqualityComparer<TKey>? comparer);IEnumerable<TResult> GroupJoin<TOuter, TInner, TKey, TResult>(this IEnumerable<TOuter> outer, IEnumerable<TInner> inner, Func<TOuter, TKey> outerKeySelector, Func<TInner, TKey> innerKeySelector, Func<TOuter, IEnumerable<TInner>, TResult> resultSelector);IEnumerable<TSource> Intersect<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second, IEqualityComparer<TSource>? comparer);IEnumerable<TSource> Intersect<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second);IEnumerable<TSource> IntersectBy<TSource, TKey>(this IEnumerable<TSource> first, IEnumerable<TKey> second, Func<TSource, TKey> keySelector);IEnumerable<TSource> IntersectBy<TSource, TKey>(this IEnumerable<TSource> first, IEnumerable<TKey> second, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer);IEnumerable<TResult> Join<TOuter, TInner, TKey, TResult>(this IEnumerable<TOuter> outer, IEnumerable<TInner> inner, Func<TOuter, TKey> outerKeySelector, Func<TInner, TKey> innerKeySelector, Func<TOuter, TInner, TResult> resultSelector);IEnumerable<TResult> Join<TOuter, TInner, TKey, TResult>(this IEnumerable<TOuter> outer, IEnumerable<TInner> inner, Func<TOuter, TKey> outerKeySelector, Func<TInner, TKey> innerKeySelector, Func<TOuter, TInner, TResult> resultSelector, IEqualityComparer<TKey>? comparer);TSource Last<TSource>(this IEnumerable<TSource> source);TSource Last<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);TSource? LastOrDefault<TSource>(this IEnumerable<TSource> source);TSource LastOrDefault<TSource>(this IEnumerable<TSource> source, TSource defaultValue);TSource? LastOrDefault<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);TSource LastOrDefault<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate, TSource defaultValue);long LongCount<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);long LongCount<TSource>(this IEnumerable<TSource> source);long Max<TSource>(this IEnumerable<TSource> source, Func<TSource, long> selector);decimal Max<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal> selector);double Max<TSource>(this IEnumerable<TSource> source, Func<TSource, double> selector);int Max<TSource>(this IEnumerable<TSource> source, Func<TSource, int> selector);decimal? Max<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal?> selector);TSource? Max<TSource>(this IEnumerable<TSource> source, IComparer<TSource>? comparer);int? Max<TSource>(this IEnumerable<TSource> source, Func<TSource, int?> selector);long? Max<TSource>(this IEnumerable<TSource> source, Func<TSource, long?> selector);float? Max<TSource>(this IEnumerable<TSource> source, Func<TSource, float?> selector);TResult? Max<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector);double? Max<TSource>(this IEnumerable<TSource> source, Func<TSource, double?> selector);TSource? Max<TSource>(this IEnumerable<TSource> source);float Max<TSource>(this IEnumerable<TSource> source, Func<TSource, float> selector);float Max(this IEnumerable<float> source);float? Max(this IEnumerable<float?> source);long? Max(this IEnumerable<long?> source);int? Max(this IEnumerable<int?> source);double? Max(this IEnumerable<double?> source);decimal? Max(this IEnumerable<decimal?> source);long Max(this IEnumerable<long> source);int Max(this IEnumerable<int> source);double Max(this IEnumerable<double> source);decimal Max(this IEnumerable<decimal> source);TSource? MaxBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);TSource? MaxBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey>? comparer);decimal Min(this IEnumerable<decimal> source);TResult? Min<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector);float Min<TSource>(this IEnumerable<TSource> source, Func<TSource, float> selector);float? Min<TSource>(this IEnumerable<TSource> source, Func<TSource, float?> selector);int? Min<TSource>(this IEnumerable<TSource> source, Func<TSource, int?> selector);double? Min<TSource>(this IEnumerable<TSource> source, Func<TSource, double?> selector);decimal? Min<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal?> selector);long Min<TSource>(this IEnumerable<TSource> source, Func<TSource, long> selector);int Min<TSource>(this IEnumerable<TSource> source, Func<TSource, int> selector);decimal Min<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal> selector);TSource? Min<TSource>(this IEnumerable<TSource> source, IComparer<TSource>? comparer);TSource? Min<TSource>(this IEnumerable<TSource> source);long? Min<TSource>(this IEnumerable<TSource> source, Func<TSource, long?> selector);double Min<TSource>(this IEnumerable<TSource> source, Func<TSource, double> selector);float Min(this IEnumerable<float> source);float? Min(this IEnumerable<float?> source);long? Min(this IEnumerable<long?> source);int? Min(this IEnumerable<int?> source);double? Min(this IEnumerable<double?> source);decimal? Min(this IEnumerable<decimal?> source);double Min(this IEnumerable<double> source);long Min(this IEnumerable<long> source);int Min(this IEnumerable<int> source);TSource? MinBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey>? comparer);TSource? MinBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);IEnumerable<TResult> OfType<TResult>(this IEnumerable source);IOrderedEnumerable<TSource> OrderBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey>? comparer);IOrderedEnumerable<TSource> OrderBy<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);IOrderedEnumerable<TSource> OrderByDescending<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);IOrderedEnumerable<TSource> OrderByDescending<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey>? comparer);IEnumerable<TSource> Prepend<TSource>(this IEnumerable<TSource> source, TSource element);IEnumerable<int> Range(int start, int count);IEnumerable<TResult> Repeat<TResult>(TResult element, int count);IEnumerable<TSource> Reverse<TSource>(this IEnumerable<TSource> source);IEnumerable<TResult> Select<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, int, TResult> selector);IEnumerable<TResult> Select<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, TResult> selector);IEnumerable<TResult> SelectMany<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, int, IEnumerable<TResult>> selector);IEnumerable<TResult> SelectMany<TSource, TCollection, TResult>(this IEnumerable<TSource> source, Func<TSource, IEnumerable<TCollection>> collectionSelector, Func<TSource, TCollection, TResult> resultSelector);IEnumerable<TResult> SelectMany<TSource, TCollection, TResult>(this IEnumerable<TSource> source, Func<TSource, int, IEnumerable<TCollection>> collectionSelector, Func<TSource, TCollection, TResult> resultSelector);IEnumerable<TResult> SelectMany<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, IEnumerable<TResult>> selector);bool SequenceEqual<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second);bool SequenceEqual<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second, IEqualityComparer<TSource>? comparer);TSource Single<TSource>(this IEnumerable<TSource> source);TSource Single<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);TSource SingleOrDefault<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate, TSource defaultValue);TSource SingleOrDefault<TSource>(this IEnumerable<TSource> source, TSource defaultValue);TSource? SingleOrDefault<TSource>(this IEnumerable<TSource> source);TSource? SingleOrDefault<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);IEnumerable<TSource> Skip<TSource>(this IEnumerable<TSource> source, int count);IEnumerable<TSource> SkipLast<TSource>(this IEnumerable<TSource> source, int count);IEnumerable<TSource> SkipWhile<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);IEnumerable<TSource> SkipWhile<TSource>(this IEnumerable<TSource> source, Func<TSource, int, bool> predicate);int Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, int> selector);long Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, long> selector);decimal? Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal?> selector);long? Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, long?> selector);int? Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, int?> selector);double Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, double> selector);float? Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, float?> selector);float Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, float> selector);double? Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, double?> selector);decimal Sum<TSource>(this IEnumerable<TSource> source, Func<TSource, decimal> selector);long? Sum(this IEnumerable<long?> source);float? Sum(this IEnumerable<float?> source);int? Sum(this IEnumerable<int?> source);double? Sum(this IEnumerable<double?> source);decimal? Sum(this IEnumerable<decimal?> source);long Sum(this IEnumerable<long> source);int Sum(this IEnumerable<int> source);double Sum(this IEnumerable<double> source);decimal Sum(this IEnumerable<decimal> source);float Sum(this IEnumerable<float> source);IEnumerable<TSource> Take<TSource>(this IEnumerable<TSource> source, Range range);IEnumerable<TSource> Take<TSource>(this IEnumerable<TSource> source, int count);IEnumerable<TSource> TakeLast<TSource>(this IEnumerable<TSource> source, int count);IEnumerable<TSource> TakeWhile<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);IEnumerable<TSource> TakeWhile<TSource>(this IEnumerable<TSource> source, Func<TSource, int, bool> predicate);IOrderedEnumerable<TSource> ThenBy<TSource, TKey>(this IOrderedEnumerable<TSource> source, Func<TSource, TKey> keySelector);IOrderedEnumerable<TSource> ThenBy<TSource, TKey>(this IOrderedEnumerable<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey>? comparer);IOrderedEnumerable<TSource> ThenByDescending<TSource, TKey>(this IOrderedEnumerable<TSource> source, Func<TSource, TKey> keySelector);IOrderedEnumerable<TSource> ThenByDescending<TSource, TKey>(this IOrderedEnumerable<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey>? comparer);TSource[] ToArray<TSource>(this IEnumerable<TSource> source);Dictionary<TKey, TSource> ToDictionary<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector) where TKey : notnull;Dictionary<TKey, TSource> ToDictionary<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer) where TKey : notnull;Dictionary<TKey, TElement> ToDictionary<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector) where TKey : notnull;Dictionary<TKey, TElement> ToDictionary<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, IEqualityComparer<TKey>? comparer) where TKey : notnull;HashSet<TSource> ToHashSet<TSource>(this IEnumerable<TSource> source, IEqualityComparer<TSource>? comparer);HashSet<TSource> ToHashSet<TSource>(this IEnumerable<TSource> source);List<TSource> ToList<TSource>(this IEnumerable<TSource> source);ILookup<TKey, TElement> ToLookup<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, IEqualityComparer<TKey>? comparer);ILookup<TKey, TElement> ToLookup<TSource, TKey, TElement>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector);ILookup<TKey, TSource> ToLookup<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector);ILookup<TKey, TSource> ToLookup<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer);bool TryGetNonEnumeratedCount<TSource>(this IEnumerable<TSource> source, out int count);IEnumerable<TSource> Union<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second);IEnumerable<TSource> Union<TSource>(this IEnumerable<TSource> first, IEnumerable<TSource> second, IEqualityComparer<TSource>? comparer);IEnumerable<TSource> UnionBy<TSource, TKey>(this IEnumerable<TSource> first, IEnumerable<TSource> second, Func<TSource, TKey> keySelector);IEnumerable<TSource> UnionBy<TSource, TKey>(this IEnumerable<TSource> first, IEnumerable<TSource> second, Func<TSource, TKey> keySelector, IEqualityComparer<TKey>? comparer);IEnumerable<TSource> Where<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate);IEnumerable<TSource> Where<TSource>(this IEnumerable<TSource> source, Func<TSource, int, bool> predicate);IEnumerable<(TFirst First, TSecond Second, TThird Third)> Zip<TFirst, TSecond, TThird>(this IEnumerable<TFirst> first, IEnumerable<TSecond> second, IEnumerable<TThird> third);IEnumerable<(TFirst First, TSecond Second)> Zip<TFirst, TSecond>(this IEnumerable<TFirst> first, IEnumerable<TSecond> second);IEnumerable<TResult> Zip<TFirst, TSecond, TResult>(this IEnumerable<TFirst> first, IEnumerable<TSecond> second, Func<TFirst, TSecond, TResult> resultSelector);