Gain insights into Rust programming fundamentals, explore its syntax, ownership, and type system, and delve into core components like memory management, traits, and generics to enhance your skills.

Rust is quickly becoming one of the most popular languages. With a strong basis as a systems and embedded language, its clean design and ergonomics makes it an emerging choice for general purpose programming tasks as well. This course will be your guide to the fundamentals of programming and Rust. Whether you have no experience or want to learn a new language, this is the place to start.

In this course, you’ll start off with the basics of the Rust programming language, learning the syntax, the philosophy of the language, and the anatomy of Rust. With that in hand, you’ll move onto some of the more unique parts of Rust, such as expression-oriented programming, ownership, and its strong type system.

In the latter half of the course, you’ll work through some of the core components of Rust such as references, memory management, mutability, traits, slices, and generics.

By the time you finish, you’ll have the foundations in place to learn more advanced concepts and take your Rust programming to the next level.

The Ultimate Guide to Rust Programming

A better solution to the above problem is to modify `greet` to take a reference.

**Exercise** Get rid of the `.clone()` method call, and modify `greet` to accept a `&String` parameter. Then fix the calls to the `greet` function in `main`.

fn greet(name: String) {
    println!("Hello {}", name);
}

fn main() {
    let first_name = "Michael";
    let last_name = " Snoyman";
    let full_name: String = first_name.to_owned() + last_name;

    greet(full_name.clone());
    greet(full_name);
}


That’s all well and good, but let’s make our example a little more involved. Now we want to greet a few different people:

fn greet(name: &String) {
    println!("Hello {}", name);
}

fn main() {
    let snoyman: &str = " Snoyman";
    let michael: String = "Michael".to_owned() + snoyman;
    let miriam: String = "Miriam".to_owned() + snoyman;
    let alice: &str = "Alice Smith";

    greet(&michael);
    greet(&miriam);
    greet(alice);
}


Both `michael` and `miriam` contain owned `String`s, and therefore the first two calls to `greet` work just fine. However, we get an error on the call to `greet(alice)`:

```text
error[E0308]: mismatched types
  --> main.rs:13:11
   |
13 |     greet(alice);
   |           ^^^^^ expected struct `std::string::String`, found str
   |
   = note: expected type `&std::string::String`
              found type `&str`
```

A reference to a string slice isn’t the same as a reference to an owned `String`, which is why this fails. One solution to this would be to convert `alice` into an owned `String` and then borrow a reference to that:

Welcome to Begin Rust

Hello World and variables

Anatomy of Rust

Functions

Booleans

Conditionals

Mutable variables and while loops

Structs and ownership

References

Methods

Strings

Arrays, Vecs, and slices

Type parameters

Traits

Enums

Iterators and for loops

Early exit

What’s next?

Borrowing a String