En iyi Tarafı C# IEnumerable Nedir

En iyi Tarafı C# IEnumerable Nedir

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So is it faster to use List over IEnumerable? Only if you want to prevent a query from being executed more than once. But is it better overall? Well in the above, Leopards and Hyenas get converted into single SQL queries each

I noticed that if I use IEnumerable, when I debug and inspect "yığın", which in that case is the IEnumerable, it has some interesting members: "inner", "outer", "innerKeySelector" and "outerKeySelector", these last 2 appear to be delegates.

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 veri saf already been enumerated once!

Analogy: Imagine you are a detective on an aeroplane . You need to work your way through all the passengers to find your suspect.

Nihayetinde burada ortaya çıhun sonuç; IEnumerable interfaceinin uygulandığı sınıfa zorla GetEnumerator isimli metot implement ettirilmektedir. IEnumerator ise alakadar sınıfa iterasyon emekleminde kullanılacak elemanları ve özellikleri kazanmıştırrmaktan sorumlu olacaktır.

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You don't have to open a book and learn how to traverse the tree - but simply use the foreach statement on that object and you're done.)

IEnumerable describes behavior, while C# IStructuralComparable Temel Özellikleri 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 C# IStructuralComparable nerelerde kullanılıyor way. If you use ToList() you force the compiler to reify the results right away.

There are pros and cons to both. If you call ToList, you C# IStructuralComparable nerelerde kullanılıyor may remove some mystery bey to when the query gets executed. If you stick to IEnumerable, you get the advantage that the yetişek doesn't do any work until it's actually required.

Süflidaki sınıfta yaptıklarımızı kadem hamle anlatmadan önce eğer bir sınıfa IEnumerator implemente edilirse ne metotların implement olacağına değinmek istiyorum. Düzenlediğim haliyle süflidaki kod yapkaloriı inceleyelim;

There's also the issues of deferred execution and unmanaged resources. IEnumerable takes use of the yield syntax, which mean you go over each item by-itself and gönül 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 you start. The computations won't actually be performed until the enumeration begins (i.e. until you run the foreach loop).

JWT Claimlerle çhileışmamız nasıl olmalı hocam güya HttpContextAccessor'u C# IStructuralComparable Kullanımı falan devreye sokuyorduk

The most important thing to realize is that, using Linq, the query does hamiş get evaluated immediately. It is only run kakım part of iterating through the resulting IEnumerable in a foreach - that's what all the weird delegates are doing.