This module provides the best approach to learn Rust, starting from the basics to advance topics. It is an introduction to Rust, specifically for beginners aspiring to become skilled Rust developers.

Become a Rust Web Developer

The word is out: developers love Rust. It's rapidly becoming a top choice for systems and embedded programmers, and the demand for Rust developers is rising. Known for its performance, reliability, and productivity—especially compared to C++—Rust is a powerful language to master. If you're a systems developer, it's a fantastic next step.
In this module, you'll learn Rust by actively engaging in coding. It starts with a simple "Hello world" program and covers essential concepts like arrays, strings, vectors, enums, structures, traits, generics, functions, and logic. You'll also dive into advanced topics such as lifetime and memory management.

Learn Rust

fn arr_square() -> [i32;5] {
    let mut square:[i32;5] = [1, 2, 3, 4, 5]; // mutable array 
    for i in 0..5 {  // compute the square of each element
        square[i] = square[i] * square[i];
    }
    square
}
fn main(){
    println!("Updated Array : {:?}",arr_square());
}

### Explanation
* On **line 2**, a mutable array `square` of **type `i32` and size `5`** is initialized with elements 1 , 2 , 3 , 4 ,5.
* On **line 3**, a `for` loop takes a variable `i` that iterates over the elements of the array `square` and squares each element and updates the `square` array on **line 4**.

 The following illustration shows how the square of an element of an array is calculated using a `for` loop:

## Explanation
* On **line 2**, a mutable array `square` of **type `i32` and size `5`** is initialized with elements 1 , 2 , 3 , 4 ,5.
* On **line 3**, a `for` loop takes a variable `i` that iterates over the elements of the array `square` and squares each element and updates the `square` array on **line 4**.

 The following illustration shows how the square of an element of an array is calculated using a `for` loop:

This lesson gives a detailed solution review to the problem in the previous lesson.

Rust Programs

Rust Variables

Rust Data Types

Rust Operators

Rust if and if let Expressions

Rust Loops

Rust Functions

Rust Strings

Rust Vectors

Rust Structs

Conclusion

Solution:

Explanation