Option & Result in Rust: interview exercises

Option & Result in Rust: 4 test-checked interview exercises (An answer that may not exist), each beside a worked example, with tests as you go. Free.

1. An answer that may not exist
2. Collect into a Result
3. A custom error type
4. Retry a failing call

Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Progress is saved in your browser, and in your account if you sign in.

More Rust topics

• Strings
• Vectors & Slices
• Structs & Enums
• Ownership & Borrowing
• Closures & Iterators
• Practical
• Traits & Generics

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