Ruby 中的参数数量错误

Question

I need to randomly generate a name and capitalization. I am getting the wrong number of arguments error

" main.rb:21:in random_both': wrong number of arguments (given 0, expected 2) (ArgumentError) from main.rb:26:in ' "

And I don't understand the error enough to know what I need to fix here. I would just like to know where this is going wrong.

I'm not looking for the answer necessarily but a push in the right direction would be lovely...

*note I can only amend

    def random_both(random_name, random_case)
     [random_name, random_case].sample
    end

Answer 1

错误消息非常清楚：您使用 2 个参数定义了random_both ，但是在调用它时传递了 0 个参数。

Answer 2

You have to pass random_both two arguments. You're currently passing zero arguments, like this: random_both() . But just passing random_both two arguments won't work either because you're calling random_case from random_both and random_case also takes an argument.

Answer 3

I guess there is a misunderstanding of concepts.

def random_both(random_name, random_case)
 [random_name, random_case].sample
end

You are trying to use methods (random_name, random_case) as parameters.

Proceed to remove them from parameters and it should work.