Control Flow

If

src/structs.duck

fn main() {
    if (3 == 3) {
        std::io::println("3 is equal to 3");
    }

    if (3 == 3 and 5 == 5) {
        std::io::println("and worked");
    }

    if (3 == 4 or 6 == 6) {
        std::io::println("or worked");
    }

    // if can be used as an expression
    const msg = if (1.to_string() == "1") {
        "i am the message for true"
    } else {
        "this is the false message"
    };
    
    std::io::println(msg);
}

For loops

For loops work on std::col::Iter and provide access to each element

src/structs.duck

fn main() {
    const list = std::col::ArrayList::from_array(["first elem", "second elem"]);
    for (elem in list.iter()) {
        std::io::println(elem.to_string());
    }

    for (elem in list.iter().rev()) { // get every element in reverse
        std::io::println(elem.to_string());
    }
}

While loops

src/structs.duck

fn main() {
    let count = 0;
    while (count < 5) {
        std::io::println(f"Currently at {count.to_string()}");
        
        if (count == 3) {
            break; 
        }
        
        if (count == 4) {
            continue;
        }
    
        count = count + 1;
    }
}