6+ Enumerable.Empty Vs New List

The primary difference is the return type. EnumerableDistinct Method SystemLinq Returns distinct elements from a sequence.

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It might also be a bit more efficient but thats only a secondary.

. So in summary. IList randomList random null. Its better to use the most generic type for a parameter.

Secondary there is no reason to. An empty sequence suggests that. As for using them.

I think EnumerableEmpty is better because it is more explicit. First of all your method will be able to support maximum clients. The right type.

Use EnumerableEmpty instead of new List Issue 304 RalfKobanMiKo-Analyzers GitHub If a method has a IEnumerable as return value then we should. It can be used when you want to avoid a query expression and instead just want to use an empty. Ago Well IEnumerable is simply an interface List is a class implementing this interface and a couple more.

The following code examples demonstrate how to use DefaultIfEmpty IEnumerable to provide a default value in case the source sequence is empty. IEnumerable will not execute the query until you enumerate over the data whereas List will. In the similar fashion I used new List Ctor new List 0 Ctor0.

What is the difference between ArrayEmpty and EnumerableEmpty. When you accept a list of objects might be. IEnumerable random GetRandomNumbers.

EnumerableEmpty generates an IEnumerable of zero elements. IInvocation 7 mo. Internal class EmptyEnumerable public static readonly T Instance new T 0.

IEnumerable is a deferred execution while List is an immediate execution. New List. The list is different because theres no ListEmpty or something like that.

EnumerableSelect Method SystemLinq Projects each element of a sequence into a new. Your code clearly indicates your intentions. It returns EmptyEnumerableInstance which is defined as.

The Empty method caches an empty sequence of type.

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