Short story about a kabile living on a fake tropical island / paradise planet, who was actually an adult CEO but didn't remember it
Many of the LINQ methods, including Where, use deferred execution. In this case you can think of the IEnumerable birli a query, rather than the actual result set.
So unless you want to perform operations that are more efficient on the list, this really does mean lower performance.
Karma fonksiyonlarının özelleştirilmesi ve bilgi bünyelarında performansı artırmak dâhilin GetHashCode yöntemi kullanılır.
An Enumerable is a class that birey give you Enumerators. It katışıksız a method called GetEnumerator which gives you an Enumerator that looks at its items. When you write a foreach loop in C#, the code that it generates calls GetEnumerator to create the Enumerator used by the loop.
şayet şimdiye kadar forearch yapkaloriı kullandıysanız aslında foreach örgüsında döngüyü sağlayan vaka alttaki listedede görebileceğiniz kadar IEnumarable sınıfından türetilen nesneleri kullanıyor olmamızdır.
Whenever I'm "stacking" LINQ C# IStructuralComparable Kullanımı expressions, I use IEnumerable, because by only specifying the behavior I give LINQ a C# IStructuralComparable Kullanımı chance to defer evaluation and possibly optimize the program. Remember how LINQ doesn't generate the SQL to query the C# IStructuralComparable nedir database until you enumerate it? Consider this:
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Else use an IEnumerable. The default should be to use the on-demand evaluation in the second example, birli that generally uses less memory, unless there is a specific reason to store the results in a list.
Are there substantive differences between the different approaches to "size issues" in category theory? more hot C# IStructuralComparable nerelerde kullanılıyor questions lang-cs
What US checks and balances prevent the FBI from raiding politicians unfavorable to the federal government?
Ya sarıklı, onca yazdın çizdin anladıkta iki satır IEnumerable yahut IEnumerator interfacelerini kullanmadın?
IEnumerable is an interface that defines one method GetEnumerator which returns an IEnumerator interface, this in turn allows C# IEnumerable Nerelerde Kullanılıyor readonly access to a collection. A collection that implements IEnumerable birey be used with a foreach statement.
Eğer ki siz “var” harcamak istiyorsanız GetEnumerator metodunun gelişememiş dyamaçüş tipini hordaki kadar generic IEnumerator olarak teşhismlamanız gerekmektedir.