Result

Practical Error Handling in Rust with Result and the ? Operator

Rust makes recoverable failure part of a function’s type. Instead of relying on exceptions, operations that can fail commonly return Result<T, E>, forcing callers to either handle the error or propagate it. That explicitness can feel verbose at first. The ? operator and well-designed error types keep the code concise without hiding failure paths. Result represents success or failure Result<T, E> has two variants: Ok(value) Err(error) Reading a file therefore returns either the file contents or an I/O error: