functions in rust

Topics

• rust

In Rust, code can be separated into blocks, which can be treated as the single statement or expression they evaluate to. This means we can assign variables to a block of code:

let sum = {
    let number_1 = 11;
    let number_2 = 31;
    number_1 + number_2
};
 
println!("{sum}");

If we look closely, we can see that functions are actually just callable, named blocks:

fn sum() -> u32 {
    let number_1 = 11;
    let number_2 = 31;
    number_1 + number_2
}

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