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

What’s the absolute value of -5? The answer is 5. So, Rust should say the same thing, right? Let’s find out\!

fn main() {
    println!("x == {}", -5_i32.abs());
}


If you’re expecting the output of this program to be `x == 5`, you’re in for a surprise. Instead, the answer is the exact opposite of what we hoped for: `x == -5`. Can you see why?

The problem is that the negative sign applies *after* the method call. In other words, Rust is looking at our program like this:

  - `5_i32` is an integer literal

  - Take the absolute value of that, and get 5

  - Now apply the negative sign to make a `-5`

One way to fix this would be to put the `-5` inside a variable using `let`. Another way is to use parentheses to wrap up the literal.

**Exercise**

Add open and close parentheses to make the output of the program above be `x == 5`.


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?

Negative Numbers are Annoying