C# IEnumerator neden kullanmalıyız Aptallar için

foreach : is a C# construct/facade in a sense in that you don't need to know how it works under the hood. It internally gets the iterator and calls the right methods for you to concentrate on what you want to do with each item (the contents of the foreach block).

JWT Claimlerle çkırmızıışmamız nasıl olmalı hocam âdeta HttpContextAccessor'u filan devreye sokuyorduk

1 @JimBalter technically it doesn't define any classes. The code is syntactic sugar for a code construct that defines two classes and those two classes and then removed again because classes a compile time construct.

If multiple iterations is not required caching will be a performance hit and Sam states that performance is very much a concern hence no caching included

Solution with use of Factory along with fixing cached IEnumerator issue in JaredPar's answer allows to change the way of enumeration.

The enumerator does not have exclusive access to the collection; therefore, enumerating through a collection is intrinsically hamiş a thread-safe procedure. Even when a collection is synchronized, other threads emanet still modify the collection, which causes the enumerator to throw an exception.

An IEnumerable is a thing that can be enumerated...which simply means that it özgü a GetEnumerator method that returns an IEnumerator.

C# dilinde, IEnumerator özellikle kötüdaki kadar koleksiyonlar üzerinde bilgi kıraat ve işlemlemlerinde tercih edilir:

Here we are supplying a function to be run on C# IEnumerator Kullanımı each element in users and returning a list that contains each of those items.

Initially, the enumerator is positioned before the first element in the collection. At this position, Current is undefined. Therefore, you must call MoveNext to advance the enumerator to the first element of the collection before reading the value C# IEnumerator Kullanımı of Current.

The compiler performs pattern matching. The GetEnumerator method just needs to return a class / struct which in turn katışıksız a Current property and a MoveNext method C# IEnumerator nerelerde kullanılıyor that C# IEnumerator Temel Özellikleri returns a bool. I can highly recommend Eric Lipperts blog post about pattern matching

IEnumerable already derives from IEnumerable so there's no need C# IEnumerator Nasıl kullanılır to do any conversion. You can simply cast to it...well actually it's implicit no cast necessary.

To guarantee thread safety during enumeration, you birey lock the collection during the entire enumeration. To allow the collection to be accessed by multiple threads for reading and writing, you must implement your own synchronization.

Bu soruya yalnızca kayıtlı kullanıcılar yanıt yazabilirler. Yanıt tastir etmek bağırsakin lütfen giriş yapınız.