Longest or shortest string in a vector

• max

• min

• max_by

• min_by

• cmp

• max and min abc order

• max and min by length

fn main() {
    let animals = ["snake", "mouse", "cat", "elephant"];
    println!("{:?}", animals);

    let max = animals.iter().max().unwrap();
    println!("{}", max);
    let min = animals.iter().min().unwrap();
    println!("{}", min);

    let longest = animals.iter().max_by(|x, y| x.len().cmp(&y.len())).unwrap();
    println!("{}", longest);

    let shortest = animals.iter().min_by(|x, y| x.len().cmp(&y.len())).unwrap();
    println!("{}", shortest);
}

["snake", "mouse", "cat", "elephant"]
snake
cat
elephant
cat