MoreEnumerableCountBy Method |
Name | Description | |
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CountByTSource, TKey(IEnumerableTSource, FuncTSource, TKey) |
Applies a key-generating function to each element of a sequence and returns a sequence of
unique keys and their number of occurrences in the original sequence.
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CountByTSource, TKey(IEnumerableTSource, FuncTSource, TKey, IEqualityComparerTKey) |
Applies a key-generating function to each element of a sequence and returns a sequence of
unique keys and their number of occurrences in the original sequence.
An additional argument specifies a comparer to use for testing equivalence of keys.
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