Ne demek?

If an airline is "countable", this means that there MUST be a flight attendant present on the plane, whose sole job is to count:

Can a unique position be deduced if pieces are replaced by checkers (can see piece color but derece type)

GetEnumerator metodu, bir sınıfa iterasyon yapılarını kazandıracak özellikleri çitndıran IEnumerator nesnesi dönen bir metotdur.

Özellikle Dictionary, HashSet üzere done kuruluşlarıyla birlikte kullanılarak özelleştirilmiş karşılaştırmalar katkısızlar. Böylelikle, farklı muta tipleri veya muhtelitşık kontralaştırma kuralları gerektiren durumlarda kullanıcıya suples esenlar.

Yazılımda iterasyon dendiğinde akla ilk olarak foreach geldiğini biliyoruz. Zımnında bizler foreach döngüsü ile iterasyonel bir mimarida olan bütün referanslar üzerinde alışverişlemler yapabilmekteyiz. Hatta kendi custom sınıflarımıza iterasyonel özellik kazandırabilmek ve foreach ile üzerinde muamele yapabilmemiz için IEnumerable interface’ini kullanmaktayız. IEnumerable’ı geçekırlama mahiyetinde referans aldığımız kaynaktan ait kuruluşya üstüne alıntıda bulunalım;

I noticed that if I use "Distinct", the "inner" contains 6 items (this is incorrect as only 2 are Distinct), but the "outer" does contain the correct values. Again, probably the delegated methods determine this but this is a bit more than I know about IEnumerable.

Whenever I'm "stacking" LINQ expressions, I use IEnumerable, because by only specifying the behavior I give LINQ a chance to defer C# IEnumerable Nerelerde Kullanılıyor evaluation and possibly optimize the izlence. Remember how LINQ doesn't generate the SQL to query the database until you enumerate it? Consider this:

The constructor is not 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 returns an array should be coded in Garage and it C# IEnumerable Kullanımı should return an array, in which case, there would be no need to use IEnumerable.

IEnumerable describes behavior, while List is an implementation of that behavior. When you use IEnumerable, you give the compiler a chance to defer C# IEnumerable Nasıl Kullanılır work until later, possibly optimizing along the way. If you use ToList() you force the compiler to reify the results right away.

List, on the other hand, C# IEnumerable Kullanımı is a specific implementation of IEnumerable that stores the objects C# IEnumerable Nedir in a specific, known manner. Internally, this may be a very good way to store your values that you expose via IEnumerable, but a List is hamiş always appropriate.

This yaşama be very useful in certain circumstances, for instance in a massive database table you don't want to copy the entire thing into memory before you start processing the rows.

a reset on enumerators, but this is largely a design mistake and shouldn't be used (it is even a formal requirement in the spec that iterator blocks throw an exception if you call it).

IQueryable is faster than IEnumerable if we are dealing with huge amounts of veri from database because,IQueryable gets only required data from database where kakım IEnumerable gets all the data regardless of the necessity from the database

You should still avoid declaring the parameter type as List. Using IList allows the caller to pass arrays and any other objects whose type implements IList.

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