IEnumerable vs IEnumerator in C#: One is 2x Faster - LinkedIn Edition

[giscus[bot]]

IEnumerable vs IEnumerator in C#: One is 2x Faster - LinkedIn Edition

During my recent browsing on LinkedIn I saw that question: IEnumerable vs IEnumerator in C#: One is 2x Faster – Which One?
Naturally, I was very suspicious. So let's find out what is going on here.

https://steven-giesel.com/blogPost/b705be3e-8d80-4de1-aefb-29c9262c49b7

[jslicer]

Here's another fun fact: https://learn.microsoft.com/en-us/archive/blogs/kcwalina/duck-notation

[linkdotnet]

I like that - there some other gems like what one can await.
In former version of C# Dispose had the same „gimmick“. You can use using without an interface implementation of IDisposable