Is yield break equivalent to returning Enumerable<T>.Empty from a method returning IEnumerable<T>
c#
Solution
If you intend to always return an empty enumerable then using the `Enumerable.Empty<string>()` syntax is more declarative IMHO.
The performance difference here is almost certainly not significant. I would focus on readability over performance here until a profiler showed you it was a problem.
Problem
These two methods appear to behave the same to me ``` public IEnumerable<string> GetNothing() { return Enumerable.Empty<string>(); } public IEnumerable<string> GetLessThanNothing() { yield break; } ``` I've profiled each in test scenarios and I don't see a meaningful difference in speed, but the `yield break` version is slightly faster. Are there any reasons to use one over the other? Is one easier to read than the other? Is there a behavior difference that would matter to a caller?