Parameters

You can use multiple types of parameters in Ferret functions.

Basic Parameters

fn add(a: i32, b: i32) -> i32 {
    return a + b;
}

Optional Parameters

Parameters can be optional:

fn greet(name: str, title: str?) -> str {
    if title != none {
        return "Hello, " + title + " " + name;
    }
    return "Hello, " + name;
}

Variadic Parameters

Accept multiple arguments:

fn sum(numbers: ...i32) -> i32 {
    let total := 0;
    for n in numbers {
        total = total + n;
    }
    return total;
}

let result := sum(1, 2, 3, 4, 5);  // 15

Next Steps

• Learn about Structs
• Explore Methods