If an airline is "countable", this means that there MUST be a flight attendant present on the plane, whose sole job is to count:
Doğrusu çıktı custom bir enumerator derslikı yazmamıza icap namevcut yield keyword'ü ile compiler bunu peş planda bizim bağırsakin örgüyor.
g. executing SQL on GarbageCollected contexts). I would say that ICollection is every thing you said apart from the "lazy evaluation" and we should be using that, especially if the data katışıksız already been enumerated once!
e., using IEnumerable instead of List where possible) provides exactly that decoupling while also requiring proper design philosophy. That is to say, you güç achieve decoupling but derece achieve minimal dependency, but you cannot achieve minimal dependency without achieving maximal decoupling.
I have writen about custom IEnumerator. Whats the simplest way to make IEnumerable from it ? ülküsel solution (one line of code) would be if there was some class for that purpose. Or do I have to create my own ?
The syntax (which you rarely see because there are prettier ways to do it) for moving through a collection that implements IEnumerable is:
Whenever I'm "stacking" LINQ expressions, I use IEnumerable, because by only specifying the behavior I give LINQ a chance to defer evaluation and possibly optimize the program. Remember how LINQ doesn't generate the SQL to query the database until you enumerate it? Consider this:
Koleksiyonlar Arasında Gezinmeyi Sağlar: IEnumerable, koleksiyonlar ortada kolayca gezinmenizi sağlamlar. GetEnumerator metodu ile koleksiyonun her bir elemanına erişebilir ve bu elemanlar üzerinde işlem yapabilirsiniz.
but this violates the IEnumerable semantics and the time came when I got wrong results. so switched to orderly creating C# IEnumerable Nerelerde Kullanılıyor a fresh iterator instance (see my answer)
Bu, mukayyetmın kalitesini artırır ve olası hataları er aşamalarda sabitleme etmeyi kolaylaştırır.
It's for when you want to be able to use an object with a foreach loop, but you don't know exactly what type you're dealing with, whether Array, List, or something custom.
There's also the issues of deferred execution and unmanaged resources. IEnumerable takes use of the yield syntax, C# IEnumerable Kullanımı which mean you go over each item by-itself and can perform all kinds of computations before and after. And again, this happens one-by-one, so you don't have to hold all the collection when C# IEnumerable Kullanımı you start. The computations won't actually be performed until the enumeration begins (i.e. until you run the foreach loop).
In simple words other major difference is that IEnumerable execute select query on server side, load data in-memory on client side and then C# IEnumerable Kullanımı filter veri while IQueryable execute select query on server side with all filters.
şayet ki siz “var” C# IEnumerable Nedir istismar etmek istiyorsanız GetEnumerator metodunun gelişememiş dkatüş tipini dundaki gibi generic IEnumerator olarak tanımlamanız gerekmektedir.