IEnumerable vs T[]

Question

I just realize that maybe I was mistaken all the time in exposing T[] to my views, instead of IEnumerable.

Usually, for this kind

Answer 1

Given that changing the code from an array to IEnumerable at a later date is easy, but changing it the other way is not, I would go with a IEnumerable until you know you need the small spead benfit of return an array.