Vector of tuples

---

examples/vectors/vector-of-tuples/src/main.rs

fn main() {
    let animals = vec![
        ("elephant", "huge", 100),
        ("snake", "long", 3),
    ];
    println!("{:?}", animals);
    for animal in &animals {
        println!("{} - {} - {}", animal.0, animal.1, animal.2);
    }

    // each field its own variable
    for (animal, size, weight) in &animals {
        println!("{animal} - {size} - {weight}");
    }

    // If we only need one of the values
    for (animal, _, _) in &animals {
        println!("{animal}");
    }

}

[("elephant", "huge", 100), ("snake", "long", 3)]
elephant - huge - 100
snake - long - 3
elephant - huge - 100
snake - long - 3
elephant
snake