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Tweaks from student feedback (#1061)

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* help students with the luhn exercise

* mention method-specific types in speaker notes

* Update src/exercises/day-2/luhn.md

Co-authored-by: Martin Geisler <martin@geisler.net>

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Co-authored-by: Martin Geisler <martin@geisler.net>
This commit is contained in:
Dustin J. Mitchell
2023-08-11 08:40:05 -04:00
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parent 8956fab9bb
commit e596b80c03
2 changed files with 8 additions and 4 deletions
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src/std/hashmap.md
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@@ -61,6 +61,8 @@ fn main() {
but it can lead into complications with the borrow checker.
* Try removing `to_string()` from the example above and see if it still compiles. Where do you think we might run into issues?
* This type has several "method-specific" return types, such as `std::collections::hash_map::Keys`. These types often appear in searches of the Rust docs. Show students the docs for this type, and the helpful link back to the `keys` method.
[1]: https://doc.rust-lang.org/std/collections/hash_map/struct.HashMap.html#impl-From%3C%5B(K,+V);+N%5D%3E-for-HashMap%3CK,+V,+RandomState%3E
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