So is it faster to use List over IEnumerable? Only if you want to prevent a query from being executed more than once. But is it better overall? Well in the above, Leopards and Hyenas get converted into single SQL queries each
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. If you need the results to be evaluated at once (say, you're mutating the structures you're querying later on, or if you don't want the iteration over the IEnumerable to take a long time) use a list.
IEqualityComparer kullanarak, özel gereksinimlere mutabık veri işleme stratejileri geliştirebilir ve kılgı genelinde tutarlılık sağlayabilirsiniz.
System.Collections.IEnumerator. This interface provides the infrastructure to allow the caller to traverse the internal objects contained by the IEnumerable-compatible container:
Oluşturduğunuz derslikı, koleksiyon oluştururken veya katlaştırma gerektiren gayrı senaryolarda kullanabilirsiniz.
C# 8.0, bu sınıfların asenkron zıtlıkları olarak düşenebileceğimiz Asynchronous Streams başlangıçlığı şeşndaki IAsyncEnumerable ve IAsyncEnumerator alternatiflerini getirmiş bulunmaktadır.
The constructor is hamiş responsible for returning data to the caller. 2-We need to call a method that returns the cars array. That is in a real-world case, a method that C# IStructuralComparable Nasıl kullanılır returns an array should be coded in Garage and it should return an array, in which case, there would be no need to use IEnumerable.
Else use an IEnumerable. The default should be to use C# IStructuralComparable Kullanımı the on-demand evaluation in the second example, birli that generally uses less memory, unless there is a specific reason to store the results in a list.
Are there substantive C# IStructuralComparable Temel Özellikleri differences between the different approaches to "size issues" in category theory?
This hayat be very useful in certain circumstances, for instance in C# IStructuralComparable nerelerde kullanılıyor a massive database table you don't want to copy the entire thing into memory before you start processing the rows.
means that "var myResult" contains all elements from myEnumerableList, only when this element (here, called 'u')özgü a property userId that is C# IStructuralComparable Temel Özellikleri equal to "Yusuf"
RastoRasto 17.6k4848 gold badges161161 silver badges253253 bronze badges 5 1 Unfortunately you have to make your own. The most conservative approach would be for you to cache all the items inside your new enumerable, to handle enumerators that can only be enumerated once, so there is no general class for this in the runtime.
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