Tuples: Grouping Mixed Types

Snippet

Tuples: Grouping Mixed Types

Tuples allow you to group multiple values of different types into a single compound type. Access elements using dot notation (data.0, data.1) or destructure them with pattern matching. The underscore _ ignores a value you don't need.

snippet.rs
rust
fn main() {
    let data: (&str, i32, bool) = ("Rust", 2024, true);
    println!("Language: {}", data.0);
    println!("Year: {}", data.1);
    println!("IsAwesome: {}", data.2);
 
    let (lang, year, _) = data;
    println!("Destructured: {} in {}", lang, year);
}

Breakdown

let data: (&str, i32, bool)

Declares a tuple with three elements: a string slice, an integer, and a boolean. Type annotation is required when types can't be inferred.

data.0, data.1, data.2

Access tuple elements by their index starting at 0.

let (lang, year, _) = data

Destructuring pattern that extracts values into separate variables. The _ silently discards that value.

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Tuples: Grouping Mixed Types

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