What is the difference between “yield return 0” and “yield return null” in Coroutine?

Question

I\'m new and a bit confused about \"yield\". But finally I understand how it worked using WaitForSeconds

but I can\'t see the difference betwee

Answer 1

Both yield return 0 and yield return null yields for a single frame. The biggest difference is that yield return 0 allocates memory because of boxing and unboxing of the 0 that happens under the hood, but yield return null does not allocate memory. Because of this, it is highly recommended to use yield return null if you care about performance.