So if we have IEnumerable birli parameter of any method, we güç pass any collection types to the function. Ie we yaşama have method to operate on abstraction not any specific implementation.
If you çekim to build a public API, it's better to use IEnumerable than List, because you better use the most minimalistic interface/class. List lets you access objects by index if that's required.
Şimdiye derece .Net ile kılgı geliştirenler IENumarable ve IENumerator interface yapılarını birkötü yerde gördük veya bilincinde olmadan çok kullandık ama ne meselee nimyor niye bu antrakt yüzlere ihtiyaç duyulur nerelerde kullanabilirim kabil sorulara bu makalemizde mevki vereceğiz.
If on the second house, I decide to alter the price (say add one million dollars to the price) - the entire list would change (the order is now different). "one at a time" and "all of them right now" are two different things.
An IEnumerator is a thing that güç enumerate: it katışıksız the Current property and the MoveNext and Reset methods (which in .NET code you probably won't call explicitly, though you could).
şayet şimdiye denli forearch yapısını kullandıysanız gerçekte foreach binasında döngüyü sağlayan vaka alttaki listedede görebileceğiniz üzere IEnumarable dershaneından C# IStructuralComparable Kullanımı türetilen nesneleri kullanıyor olmamızdır.
The primary difference is that the LINQ operators for IQueryable take Expression objects instead of delegates, meaning the custom query logic C# IStructuralComparable nerelerde kullanılıyor it receives, e.g., a predicate or value selector, is in the form of an expression tree instead of a delegate to a method.
IEnumerable gives you the way to implement your own logic of storing and iterating over object collection
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 C# IStructuralComparable nedir a list.
When you write a query using IEnumerable you are using the advantages of deferred execution and your query running when it accessed.
And that might be useful and more efficient in certain cases. For example, your class might hamiş hold any collection in memory, but rather iterate over all files existing in a certain directory, or items in certain DB, or other unmanaged resources. IEnumerable hayat step in and do it for you (you could also do it without IEnumerable, but IEnumerable C# IStructuralComparable Nasıl kullanılır "fits" conceptually, plus it gives you the benefit of being able to use the object produced in a foreach loop).
But if your class cannot act like a collection then provide a public IEnumerable property for its elements:
C# dilinde, IEnumerator özellikle süflidaki C# IStructuralComparable nerelerde kullanılıyor gibi koleksiyonlar üzerinde veri kıraat ve işçiliklemlerinde tercih edilir:
IEnumerable tipi veriyi önce belleğe atıp ardından bellekteki bu bilgi üzerinden belirtilen koşulları çhileıştırır ve veriye uygular.