Let's go over your code. Just like the CSV reader supports automatic deserialization into Rust types with Serde, the CSV writer supports automatic serialization from Rust types into CSV records using Serde. Rust is an incredible language, but it goes beyond that. pub fn recursive_file_traversal(starting_directory: String){ String is generally the wrong type for paths - that's what PathBuf and Path are for. My Declarative Memory Management article answers the question partially, but there is a lot more to say about it, so let's run a few experiments and see if we can conjure up a thorough defense of Rust's approach over, say, C's. It's easy enough to use collect to make that vector, using the iterator skip method to move past the program name. And with that, we hit the 30-minute estimated reading time mark, and you should be able to read most of the Rust code you find online. On one hand, you're not reading the solution to a problem, you're actually solving it. That said, I recommend you use the chrono crate. As with reading, let's start by seeing how we can serialize a Rust tuple. But it's convenient for a public interface to be able to just pass in a String or str.We can make the function generic over all these types by asking for any type that we can call as_ref() -> &Path on: It's open-source , created by kornelski . src$ rustc args0.rs src$ ./args0 42 'hello dolly' frodo './args0' '42' 'hello dolly' 'frodo' Would it have been better to return a Vec? Lib.rs is an unofficial list of Rust/Cargo crates. Why is there String, and &str? When I hear about a project in Rust, the authors seem to be in an idealistic frenzy, to create a better implementation that casts off the shackles of old. There's a question that always comes up when people pick up the Rust programming language: why are there two string types? Also note that time crate is on rust-lang-deprecated user, so it is being deprecated. If something is missing or incorrect with the site, please file a bug . In addition to supporting the format specifiers you want, the chrono crate also has support for timezones and much more. On the other hand, the Rust compiler helps out a lot. In this section, we'll learn how to use it. Writing Rust is a very different experience from reading Rust. Even simple ports from c/c++ to rust invoke awe and enthusiasm, something I don't see even in seasoned veterans of other languages.

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