Standard Library
Option
| Recipe | Crates |
|---|---|
Option |  |
| Use adapters when working with references | |
| Extract the value contained in Option | |
| Use combinators | |
[option.incl: fix (P1)](https://github.com/john-cd/rust_howto/issues/624)
Result
| Recipe | Crates |
|---|---|
Result | |
Vectors
| Recipe | Crates |
|---|---|
Vec | |
HashMap
| Recipe | Crates |
|---|---|
| Hashmaps | |
Strings
| Recipe | Crates |
|---|---|
String | |
| Placeholders | |
| Concatenate strings | |
[strings.incl: review (P1)](https://github.com/john-cd/rust_howto/issues/629)
Copy-on-write
| Recipe | Crates |
|---|---|
Convert Cow to &str | |
Convert Cow to String | |
Smart Pointers
[smart_pointers.incl: edit recipe titles; add crate badges (P1)](https://github.com/john-cd/rust_howto/issues/627)
Automatic Trait Derivation
Asref
| Recipe | Crates |
|---|---|
| AsRef and &T | |
[asref.incl: fix (P1)](https://github.com/john-cd/rust_howto/issues/618)
[standard-library/index: review (P1)](https://github.com/john-cd/rust_howto/issues/623)