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LESSON 4.3

Return a Value

A function can return a result with return ; its return type goes after the colon: fn double(n: Int32): Int32 .

Goal Make the machine double 1, 4, and 10, printing 2 8 20 .

Write a Zirk program, then run it to see the world react.

Your code

main.zirk

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Zirk

import { stdout } from std.io;

fn double(n: Int32): Int32 {
    return n;
}

fn main(): Void {
    stdout.println(double(1), double(4), double(10));
}

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Output

Your program output will appear here.

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