standard_library_types/iterators2.rs, wrong ::?

[lromor]

Hi,

I'm new to rust, but I couldn't really find a solution to this line

Could the collect() round brackets be a typo and the original code should be instead:

.collect::<String>() + c.as_str()

If it's not the case, could you provide a hint on how to solve the exercise with .collect()::<String>()?

Thank you,

-l

[nkanderson]

+1, I got hung up on this one for a bit as well. The resulting error message is a bit confusing, in my opinion, for those of us new to the syntax.

I would support either removing () after collect as suggested above, or removing the ::<String>() type annotation and guiding the user through the addition of a turbofish annotation.