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JavaScript
1

Tell us what’s happening:

My code fails in step 8 for some reason I don’t understand why.
“8. You should have a function named getRandomQuestion that returns a random question object from the questions array.”

Your code so far

const questions = [
  {
    category: "History",
    question: "In what year did World War II begin?",
    choices: ["1939", "1941", "1935"],
    answer: "1939",
  },
  {
    category: "Science",
    question: "Which planet is known as the Red Planet?",
    choices: ["Mars", "Jupiter", "Saturn"],
    answer: "Mars",
  },
  {
    category: "Sports",
    question: "How many players are on a soccer team on the field?",
    choices: ["11", "9", "10"],
    answer: "11",
  },
  {
    category: "Art",
    question: "Who painted the Mona Lisa?",
    choices: ["Leonardo da Vinci", "Pablo Picasso", "Vincent van Gogh"],
    answer: "Leonardo da Vinci",
  },
  {
    category: "History",
    question: "In what year did the French Revolution start?",
    choices: ["1788", "1789", "1810"],
    answer: "1789",
  },
];

const getRandomNumber = (min, array) =>
  Math.floor(Math.random() * (Math.floor(array.length) - Math.ceil(min)) + Math.ceil(min));

const getRandomQuestion = (questions) => questions[getRandomNumber(0,questions)]; 

const randomQuestion = getRandomQuestion(questions);

const getRandomComputerChoice = (arrayChoices) => arrayChoices[getRandomNumber(0, arrayChoices)];

const randomAnswer = getRandomComputerChoice(randomQuestion.choices);

const getResults = (question, randomA) => {
  if (question.answer.includes(randomA)) {
    return "The computer's choice is correct!";
  } else {
    return `The computer's choice is wrong. The correct answer is: ${question.answer}`;
  }
};

console.log(randomQuestion);
console.log(randomAnswer);
console.log(getResults(randomQuestion, randomAnswer));

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36

Challenge Information:

Build a Quiz Game - Build a Quiz Game

2

The instructions didn’t asked to use a parameter for the function in the challenge step.
Edit: you can directly return a random object form the questions array within the getRandomQuestion function.

1 Like
3

Hello, hasanzaib1389 is correct. just calling the function works with or without the parentheses. A parameter is another name for a placeholder of a real value, while you can use an array as a parameter it is not recommend as it can change the original without you knowing it.

4

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