Use .iter() instead of (&values).into_iter()
#2519
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The
(&values).into_iter()construct used in the solution to the iterators exercise is kind of awkward and always gets questions from students. I think the better thing would be to use theitermethod to get the initial iterator, as that's the more idiomatic way to. It's also an opportunity to point out that there are helper methods for getting an iterator for a collection.