Go (T, error) versus Rust Result for error handling
WHAT IT TESTS: understanding of explicit error models. OUTLINE: Go returns a separate error value you may ignore; Rust wraps success or error in one Result enum the compiler forces you to handle. Go favors simplicity, Rust favors compile-enforced safety.
WHAT IT TESTS: whether you understand the design trade-off between convention and compiler enforcement. ANSWER OUTLINE: Go returns a tuple (T, error) where error is a separate value; convention says check it, but nothing forces you and you can silently discard it. Rust encodes outcome in a single sum type Result<T, E> that must be inspected to extract the value; the compiler warns on unused Results and you cannot get T without acknowledging the error path.
Read the original → interview
- #go
- #rust
- #error-handling
- #result
- #type-safety
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