Rust - Rust Programming Language

Syntax Overview

1let x = 10; or let mut x = 10;

1fn function_name(parameters) -> return_type { }

1Not supported (uses structs and impl blocks)

1// Single line or /* Multi-line */

Code Examples and Tutorials

Learning Rust programming requires hands-on practice with real code examples. Below, you'll find comprehensive code samples that demonstrate fundamental concepts, common programming patterns, and practical implementations. Each example is carefully explained to help you understand not just what the code does, but why it's written that way and how you can adapt it for your own projects.

1fn main() {
2    println!("Hello, World!");
3}

1let age: i32 = 25;
2let price: f64 = 19.99;
3let name: String = String::from("John");
4let is_active: bool = true;

1fn add(a: i32, b: i32) -> i32 {
2    return a + b;
3}
4
5fn main() {
6    let result = add(5, 3);
7    println!("Sum: {}", result);
8}

1struct Person {
2    name: String,
3    age: i32,
4}
5
6impl Person {
7    fn new(name: String, age: i32) -> Person {
8        Person { name, age }
9    }
10    
11    fn display(&self) {
12        println!("{} is {} years old", self.name, self.age);
13    }
14}
15
16fn main() {
17    let person = Person::new(String::from("John"), 25);
18    person.display();
19}

1// For loop
2for i in 0..10 {
3    println!("{}", i);
4}
5
6// For-in loop
7let numbers = vec![1, 2, 3, 4, 5];
8for num in numbers {
9    println!("{}", num);
10}

1let age = 18;
2
3if age >= 18 {
4    println!("Adult");
5} else {
6    println!("Minor");
7}

Essential Rust Commands and Features

Understanding the essential commands and functions in Rust is crucial for effective programming. This section provides detailed explanations of the most important commands, functions, and language features you'll use regularly when developing applications with Rust. Each command is explained with its purpose, syntax, and practical usage examples to help you master the language quickly.

1println!("Hello");

1fn main() { }

1let x = 10;

1struct MyStruct { }

1impl MyStruct { }

1cargo build

Learning Rust Programming

Common Use Cases

Rust is widely used across various industries and application domains. Understanding where and how Rust is typically used helps you make informed decisions about when to choose this language for your projects. Below are the most common use cases where Rust excels, along with examples of real-world applications built with this powerful programming language.

Best Practices and Coding Standards

Following best practices is essential for writing professional, maintainable Rust code. These guidelines have been developed by the programming community over years of experience and help ensure your code is readable, efficient, and follows industry standards. Adopting these practices early in your Rust learning journey will make you a better developer and help you write code that others can easily understand and maintain.