Tuples: Fixed-Size Heterogeneous Collections

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Tuples: Fixed-Size Heterogeneous Collections

Tuples are fixed-size collections that can hold values of different types. Unlike arrays which require homogeneous types, tuples allow heterogeneous collections. You can destructure tuples into individual variables, access elements by index (0-based), and single-element tuples require a trailing comma.

snippet.rs
rust
fn main() {
    let tup: (i32, f64, u8) = (500, 6.4, 1);
    println!("Full tuple: {:?}", tup);
 
 
    let (x, y, z) = tup;
    println!("Destructured: x={}, y={}, z={}", x, y, z);
 
    let five_hundred = tup.0;
    let six_point_four = tup.1;
    println!("By index: {}, {}", five_hundred, six_point_four);
 
    let single = (42,);
    println!("Single-element tuple: {:?}", single);
}

Breakdown

let tup: (i32, f64, u8) = (500, 6.4, 1);

Creates a tuple with three elements of different types.

let (x, y, z) = tup;

Destructures the tuple into individual bound variables.

tup.0, tup.1

Accesses elements by their numeric index.

let single = (42,);

Single-element tuple requires trailing comma to distinguish from parentheses.

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Tuples: Fixed-Size Heterogeneous Collections

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