Moving between Option and Result

Whenever a binary result is to be returned from a function, the choice is between using Result or Option. Both can communicate a failed function call—but the former provides too much specificity, while the latter may give too little. While this is a decision to make for the specific situation, Rust's types provide the tools to move between them with ease. Let's go over them in this recipe.

How to do it...

In a few quick steps, you'll know how to move between Option and Result:

1. Create a new project with cargo new options-results --lib and open it with VS Code.
2. Let's edit src/lib.rs and replace the existing test (inside mod tests) with the following:

    #[derive...