In this article, I’ll walk through the various overloads and usages of LINQ’s SelectMany methods.
SelectMany is in many ways the opposite of Group...
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If I understand your final index example should look like
Or we could replace the result collector.
No, what I have there is correct and works properly.
I don't understand where
characterscomes from then. It looks undefined to me.Imagine it as a
List<string>that comes from another file or data source outside ofbooks