How to enumerate through a StringBuilder

[giscus[bot]]

How to enumerate through a StringBuilder

Did you ever wonder how we can iterate through a StringBuilder? I mean, of course, we can just call ToString and use the returned string, but that means we materialize the whole thing without good reason.
We can also use a normal for-loop. But we can also find a completely different and probably dumber way! And if you wonder: No, this is not something you do in your daily life, but by doing so, I can show some cool stuff C# and .NET offer.

https://steven-giesel.com/blogPost/5161909a-a223-4312-b939-996a0f97bf75

[AlexRadch]

I think Enumerator should use ChunkEnumerator inside so it will be fast as ChunkEnumerator also.