is have a stroke start dark and then become lighter as we draw with it, to simulate how hair- tips catch more light and look lighter due to being thinner at the ends, while at the base they are frequently bad, dangerous worst case performance hit when a detach/copy is triggered, and this is not easy to catch with standard syntax. In the blog post linked above, the discussion explains that is possible to get all types for functions and function arguments can be checked statically, and you don’t have to catch typos by monitoring debug messages saying “no such slot.” Another possibility is to use lambdas directly

expressions must be exhaustive, meaning that it covers every possibility, so _ is often used as the final catch-all case. Match can be used as an expression. Just like if, each match arm must have the same type let result = panic::catch_unwind(|| "괜찮습니다."); 169 println!("{result:?}"); let result = panic::catch_unwind(|| { panic!("이런"); }); println!("{result:?}"); } • 포착은 흔하지 않습니다. catch_unwind 로 예외를 구현하려고시도하지

expressions must be exhaustive, meaning that it covers every possibility, so _ is often used as the final catch-all case. Match can be used as an expression. Just like if, each match arm must have the same type let result = panic::catch_unwind(|| "괜찮습니다."); 168 println!("{result:?}"); let result = panic::catch_unwind(|| { panic!("이런"); }); println!("{result:?}"); } • 포착은 흔하지 않습니다. catch_unwind 로 예외를 구현하려고시도하지