Organizing Code with Modules
Learn to use Rust's module system to logically group code, manage privacy, and make your projects scalable.
Organize Your Code with Modules
As your Rust projects grow, keeping all your code in one file becomes messy. Rust's module system helps you organize code into logical units.
Modules are like folders for your code. They group related functions, structs, enums, and constants together, improving readability and maintainability.
Declaring Your First Module
You declare a module using the mod keyword, followed by the module's name. It's like creating a sub-namespace within your program.
Let's create a simple greetings module:
mod greetings {
// This is where greeting functions would go
}
fn main() {
println!("Hello from main!");
}All lessons in this course
- Organizing Code with Modules
- Managing Dependencies with Crates
- Robust Error Handling with `Result`