Suggestion: ok_or + and_then exercises #887
Description
The 'ok_or' (and ok_or_else) and 'and_then' parts of Option are a bit Rust specific and a little unusual; it might be good to have an exercise around them.
{{ message }}
The 'ok_or' (and ok_or_else) and 'and_then' parts of Option are a bit Rust specific and a little unusual; it might be good to have an exercise around them.