duckscript/test/std/for_in_test.ds

fn test_array
    counter = set 0
    args = array a b c

    for arg in ${args}
        counter = calc ${counter} + 1
    end

    assert_eq ${counter} 3
    released = release ${args}
end

fn test_nested
    counter = set 0
    values = array 1 2 3

    for i in ${values}
        for j in ${values}
            counter = calc ${counter} + 1
        end
    end

    assert_eq ${counter} 9
    released = release ${args}
end

fn test_range
    counter = set 0
    args = range 0 10

    for i in ${args}
        for j in ${args}
            counter = calc ${counter} + 1
        end
    end

    assert_eq ${counter} 100
    released = release ${args}
end