5 ms·
Minor correction: In the section about converting a vector of strings into integers the article says that the Result returned from parse() is converted to a bo
by cryptonaut 9y ago
Minor correction:
In the section about converting a vector of strings into integers the article says that the Result returned from parse() is converted to a bool via Result::ok(). However, Result::ok() actually converts the Result<T, E> into a Option<T> which is what filter_map() expects.
- Thiez 9y agoThey should have just used `flat_map`, which does everything that `filter_map` does and more. In this case the call to `Result::ok` could have been omitted in favour of the identity function (which strangely isn't in the standard library). I wonder why rust even has `filter_map`.