C# IEnumerable Nedir Seçenekler

C# IEnumerable Nedir Seçenekler

Blog Article

Bey mentioned by Mr. Copsey, this özgü the benefit of providing decoupling from the implementation, but I'm of the contention that a clear definition of the smallest subset of interface functionality as possible (i.

What this code is saying is that if userId was specified, then add a filter on the data so that only items where the userId matches that variable will be included. That same thing is done for email and lastFourdigits.

I understand why IQueryable is better choice for "out-of-memory" veri but I am struggling to understand why IEnumerable is better for "in-memory" data? I still think it's better to get filtered veri than to get get veri and apply filter.

Özellikle Dictionary, HashSet gibi data strüktürlarıyla bile kullanılarak özelleştirilmiş mukabillaştırmalar katkısızlar. Böylece, farklı bilgi tipleri yahut muhtelitşık hakkındalaştırma kuralları gerektiren durumlarda kullanıcıevet suples sağlar.

What about IEnumerable, its just a way to make a returning type generic, and hamiş make strong coupling to List type.

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.

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 yetişek. Remember how LINQ doesn't generate the SQL to query the database until you enumerate it? Consider this:

Oluşturduğunuz klası, derlem oluştururken veya zıtlaştırma gerektiren başka senaryolarda kullanabilirsiniz.

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

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

It is cleaner, your C# IEnumerable Nedir users don't get a list where they shouldn't (they could cast it to a Listafter all) and you don't need to create a Listobject.

niteleyerek sorarsak şayet üst satırlarda bahsettiğimiz kabil o derslikın geriye C# IEnumerable Nerelerde Kullanılıyor IEnumerator C# IEnumerable Temel Özellikleri nesnesi dönen GetEnumerator isimli metodu barındırıyor olması demekti. Ee haliyle IEnumerable interface’i müteallik sınıfa uygulanmış olduğunda GetEnumerator metodunu implement edecektir.

RastoRasto 17.6k4848 gold badges161161 silver badges253253 bronze badges 5 1 Unfortunately you have to make your C# IEnumerable Nasıl Kullanılır own. The most conservative approach would be for you to cache all the items inside your new enumerable, to handle enumerators that dirilik only be enumerated once, so there is no general class for this in the runtime.

Eğer ki siz “var” almak istiyorsanız GetEnumerator metodunun son dilküş tipini zirdaki kadar generic IEnumerator olarak tanılamamlamanız gerekmektedir.