在条件中调用的函数的第二个参数？

Question

我正在尝试创建一个函数来处理一系列问题和一系列答案。那么我所要做的就是调用函数，每次调整参数。

let playerScore = 0;
let questions = ['What is the capital of Germany?', 'Who is coolest man 
in Bloominton, IL?'];
let answers = ['BERLIN', 'VANCE'];

let quiz = (questions, answers) => {
  let quizAnswer = prompt(questions);
   if (quizAnswer.toUpperCase === answers) {
    playerScore++;
    alert('That is correct!');
  } else {
     alert("I'm sorry, but that is not correct");
   };
 };

quiz(questions[0], answers[0]);

条件无法正确运行。变量 'answers' 正确调用，直到它位于条件语句内。我假设它与范围有关。有没有办法解决这个问题？

Answer 1

toUpperCase() 是一个函数，而不是一个属性。

以下更改 answer 和 question 为单数，以免与数组名称混淆

let playerScore = 0;
let questions = ['What is the capital of Germany?', 'Who is coolest man in Bloominton, IL?'];
let answers = ['BERLIN', 'VANCE'];

let quiz = (question, answer) => {
  let quizAnswer = prompt(question);
   if (quizAnswer.toUpperCase() === answer) {
    playerScore++;
    alert('That is correct!');
  } else {
     alert("I'm sorry, but that is not correct");
   };
 };

quiz(questions[0], answers[0]);