We needed the list indexer infrequently, so the inefficiency was not a mesele. If it had been, we could have provided some other implementation of IList, perhaps kakım a collection of small-enough arrays, that would have been more efficiently indexable while also avoiding large objects.
Same principle kakım before, reversed. Offer the bare minimal that your caller requires. If the caller only requires the ability to enumerate the sequence, only give them an IEnumerable.
Using IList instead of List makes writing unit tests significantly easier. It allows you to use a 'Mocking' library to pass and return data.
Hayat a unique position be deduced if pieces are replaced by checkers (dirilik see piece color but not type)
IList is a interface and doesn't have any implementation, so the performance of IList depending the class it implements
GitHub'da bizimle işbirliği strüktürn Bu yürekğin kaynağı GitHub'da bulunabilir; burada hassaten sorunları ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Daha okkalı marifet karınin ulamada mevcut kılavuzumuzu inceleyin.
Most app-level code (i.e. the everyday code that ou write for your application) should probably focus on the generic versions; however there is also a lot of infrastructure code around that must use reflection.
You dirilik look at this argument from several angles including the one of a purely OO approach which says to izlence against an Interface not an implementation. With this thought, using IList follows the same principal birli passing around and using Interfaces that you define C# IList Kullanımı from scratch. I also believe in the scalability and flexibility factors provided by an Interface in general. If a class implmenting IList needs to be extended or changed, the consuming code does hamiş have to change; it knows what the IList Interface contract adheres to.
If the parameter type is IList, then the caller C# IList Nedir başmaklık much more freedom, and gönül use classes you never heard about, which may hamiş even have existed when your code was written.
The Cast function is just a reimplementation of the extension method that comes with 3.5 written birli a alışılagelen static method. It is C# IList Neden Kullanmalıyız quite ugly and verbose unfortunately.
IList is derece a class; it's an interface that classes güç implement. The interface itself is just a contract between the consumer of the class and the class itself. This line of code will work:
Is IList a good fit for your organisation? If a colleague asks you to C# IList Neden Kullanmalıyız change C# IList Kullanımı a method signature to use IList instead of List, ask them how they'd add an element to an IList. If they don't know about IsReadOnly (and most people don't), then don't use IList. Ever.
In collections of contiguous elements, such as lists, the elements that follow the insertion point move down to accommodate the new element.
The other general reason for using interfaces is to expose the minimal amount of knowledge necessary to the user of an object. Consider the (contrived) case where I have a data object that implements IList.