C# IEnumerable Temel Özellikleri Aptallar için

C# IEnumerable Temel Özellikleri Aptallar için

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şayet milyonlarca şart üzerinde sorgulama aksiyonlemi gestaltyorsak elbette IQueryable IEnumerable bakarak daha hızlı sorgulama sorunlemi yapar.

, so if you're doing complicated work to evaluate the enumerable birli you read from it, that work doesn't happen until it's asked for. This is extra beneficial, because often (say, for searches again) you'll find you might hamiş need to do the work at all.

GetEnumerator metodu, bir sınıfa iterasyon yapılarını kazanmıştırracak özellikleri barındıran IEnumerator nesnesi dönen bir metotdur.

The following code example demonstrates the best practice for iterating a custom collection by implementing the IEnumerable and IEnumerator interfaces. In this example, members of these interfaces are not explicitly called, but they are implemented to support the use of foreach (For Each in Visual Basic) to iterate through the collection.

This will create a new list element for each element in memory, enumerating the IEnumerable and is thus less performant if you only enumerate once - but safer and sometimes the List methods are handy (for instance in random access).

IEnumerator is a class that enumerates collections. A class that implements IEnumerable returns an IEnumerator. A class that implements IEnumerator saf custom enumeration logic.

Ryan LundyRyan Lundy 208k4141 gold badges183183 silver badges214214 bronze badges 3 4 Then why do we need this IEnumerable abstraction, if the only thing it does is just provide an access to Enumerator? Why don't just use Enumerator instead

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Is it legal to initialize an array C# IStructuralComparable Nasıl kullanılır via a functor which takes the array itself birli a parameter by reference?

There are many cases C# IStructuralComparable Temel Özellikleri (such as an infinite list or a very large list) where IEnumerable cannot be transformed to a List. The C# IStructuralComparable Nasıl kullanılır most obvious examples are all the prime numbers, all the users of facebook with their details, or all the items on ebay. The difference is that "List" C# IStructuralComparable Nasıl kullanılır objects are stored "right here and right now", whereas "IEnumerable" objects work "just one at a time".

Here is a very good article that details the differences between statement lambdas and expression lambdas and discusses the concepts of expression tress in greater depth: Revisiting C# delegates, expression trees, and lambda statements vs. lambda expressions.."

Evet hoca, onca yazdın çizdin anladıkta dü satır IEnumerable yahut IEnumerator interfacelerini kullanmadın?

Reed CopseyReed Copsey 561k7979 gold badges1.2k1.2k silver badges1.4k1.4k bronze badges 3 2 I agree strongly with your point about decoupling from the implementation, but I also think there's a point for making clear the expected usage; even if I have a List, referring to it kakım IEnumerable makes it clear that the functionality I'm expecting from the collection in that usage is the enumerability functionality, and hamiş C# IEnumerable Nasıl Kullanılır any of the other List functionality.

Why does the Clausius inequality involve a single term/integral if we consider a body interacting with multiple heat sources/sinks?