done

src/index.js

@@ -14,39 +14,54 @@ document.addEventListener("DOMContentLoaded", () => {
   // End view elements
   const resultContainer = document.querySelector("#result");
 
-
   /************  SET VISIBILITY OF VIEWS  ************/
 
   // Show the quiz view (div#quizView) and hide the end view (div#endView)
   quizView.style.display = "block";
   endView.style.display = "none";
 
-
   /************  QUIZ DATA  ************/
-  
+
   // Array with the quiz questions
   const questions = [
-    new Question("What is 2 + 2?", ["3", "4", "5", "6"], "4", 1),
-    new Question("What is the capital of France?", ["Miami", "Paris", "Oslo", "Rome"], "Paris", 1),
-    new Question("Who created JavaScript?", ["Plato", "Brendan Eich", "Lea Verou", "Bill Gates"], "Brendan Eich", 2),
-    new Question("What is the mass–energy equivalence equation?", ["E = mc^2", "E = m*c^2", "E = m*c^3", "E = m*c"], "E = mc^2", 3),
+    new Question("Which Hogwarts house does Harry Potter belong to?", ["Slytherin", "Ravenclaw", "Hufflepuff", "Gryffindor"], "Gryffindor", 1),
+    new Question(
+      "What is the platform number for the Hogwarts Express?",
+      ["7¾", "8½", "9¾", "10½"],
+      "9¾",
+      1,
+    ),
+    new Question(
+      "What is the name of Harry’s pet owl?",
+      ["Errol", "Scabbers", "Hedwig", "Crookshanks"],
+      "Hedwig",
+      2,
+    ),
+    new Question(
+      "Which spell is used to disarm an opponent?",
+      ["Expelliarmus", "Lumos", "Alohomora", "Avada Kedavra"],
+      "Expelliarmus",
+      3,
+    ),
     // Add more questions here
   ];
-  const quizDuration = 120; // 120 seconds (2 minutes)
 
+  const quizDuration = 120; // 120 seconds (2 minutes)
 
   /************  QUIZ INSTANCE  ************/
-  
+
   // Create a new Quiz instance object
   const quiz = new Quiz(questions, quizDuration, quizDuration);
+  console.log(quiz);
   // Shuffle the quiz questions
   quiz.shuffleQuestions();
 
-
   /************  SHOW INITIAL CONTENT  ************/
 
   // Convert the time remaining in seconds to minutes and seconds, and pad the numbers with zeros if needed
-  const minutes = Math.floor(quiz.timeRemaining / 60).toString().padStart(2, "0");
+  const minutes = Math.floor(quiz.timeRemaining / 60)
+    .toString()
+    .padStart(2, "0");
   const seconds = (quiz.timeRemaining % 60).toString().padStart(2, "0");
 
   // Display the time remaining in the time remaining container
@@ -56,26 +71,33 @@ document.addEventListener("DOMContentLoaded", () => {
   // Show first question
   showQuestion();
 
-
   /************  TIMER  ************/
 
-  let timer;
+  let timer = setInterval(() => {
+    quiz.timeRemaining--;
+
+    const minutes = Math.floor(quiz.timeRemaining / 60)
+      .toString()
+      .padStart(2, "0");
+    const seconds = (quiz.timeRemaining % 60).toString().padStart(2, "0");
+    timeRemainingContainer.innerText = `${minutes}:${seconds}`;
 
+    if (quiz.timeRemaining <= 0) {
+      clearInterval(timer);
+      showResults();
+    }
+  }, 1000);
 
   /************  EVENT LISTENERS  ************/
 
   nextButton.addEventListener("click", nextButtonHandler);
 
-
-
   /************  FUNCTIONS  ************/
 
   // showQuestion() - Displays the current question and its choices
   // nextButtonHandler() - Handles the click on the next button
   // showResults() - Displays the end view and the quiz results
 
-
-
   function showQuestion() {
     // If the quiz has ended, show the results
     if (quiz.hasEnded()) {
@@ -89,86 +111,105 @@ document.addEventListener("DOMContentLoaded", () => {
 
     // Get the current question from the quiz by calling the Quiz class method `getQuestion()`
     const question = quiz.getQuestion();
+    console.log(question);
     // Shuffle the choices of the current question by calling the method 'shuffleChoices()' on the question object
     question.shuffleChoices();
-
-
 
     // YOUR CODE HERE:
     //
     // 1. Show the question
-    // Update the inner text of the question container element and show the question text
+    questionContainer.innerText = question.text;
 
-
     // 2. Update the green progress bar
     // Update the green progress bar (div#progressBar) width so that it shows the percentage of questions answered
-
-    progressBar.style.width = `65%`; // This value is hardcoded as a placeholder
-
 
+    // This value is hardcoded as a placeholder
+    progressBar.style.width = `${(quiz.currentQuestionIndex / questions.length) * 100}%`;
+    console.log(progressBar);
 
-    // 3. Update the question count text 
+    // 3. Update the question count text
     // Update the question count (div#questionCount) show the current question out of total questions
-
-    questionCount.innerText = `Question 1 of 10`; //  This value is hardcoded as a placeholder
 
+    //questionCount.innerText = quiz.currentQuestionIndex ; //  This value is hardcoded as a placeholder
+    questionCount.innerText = `Question ${quiz.currentQuestionIndex + 1} of ${questions.length}`;
 
-
     // 4. Create and display new radio input element with a label for each choice.
     // Loop through the current question `choices`.
-      // For each choice create a new radio input with a label, and append it to the choice container.
-      // Each choice should be displayed as a radio input element with a label:
-      /* 
+    // For each choice create a new radio input with a label, and append it to the choice container.
+    // Each choice should be displayed as a radio input element with a label:
+    /* 
           <input type="radio" name="choice" value="CHOICE TEXT HERE">
           <label>CHOICE TEXT HERE</label>
         <br>
       */
-      // Hint 1: You can use the `document.createElement()` method to create a new element.
-      // Hint 2: You can use the `element.type`, `element.name`, and `element.value` properties to set the type, name, and value of an element.
-      // Hint 3: You can use the `element.appendChild()` method to append an element to the choices container.
-      // Hint 4: You can use the `element.innerText` property to set the inner text of an element.
-
+    // Hint 1: You can use the `document.createElement()` method to create a new element.
+    // Hint 2: You can use the `element.type`, `element.name`, and `element.value` properties to set the type, name, and value of an element.
+    // Hint 3: You can use the `element.appendChild()` method to append an element to the choices container.
+    // Hint 4: You can use the `element.innerText` property to set the inner text of an element.
+
+    const radioButton = document.createElement(`div`);
+    radioButton.innerHTML = `  <input type="radio" name="choice" value="${question.choices[0]}">
+          <label>${question.choices[0]}</label>`;
+    choiceContainer.appendChild(radioButton);
+
+    const radioButton2 = document.createElement(`div`);
+    radioButton2.innerHTML = `  <input type="radio" name="choice" value="${question.choices[1]}">
+          <label>${question.choices[1]}</label>`;
+    choiceContainer.appendChild(radioButton2);
+
+    const radioButton3 = document.createElement(`div`);
+    radioButton3.innerHTML = `  <input type="radio" name="choice" value="${question.choices[2]}">
+          <label>${question.choices[2]}</label>`;
+    choiceContainer.appendChild(radioButton3);
+
+    const radioButton4 = document.createElement(`div`);
+    radioButton4.innerHTML = `  <input type="radio" name="choice" value="${question.choices[3]}">
+          <label>${question.choices[3]}</label>`;
+    choiceContainer.appendChild(radioButton4);
   }
 
-
-
-  function nextButtonHandler () {
+  function nextButtonHandler() {
     let selectedAnswer; // A variable to store the selected answer value
 
-
-
     // YOUR CODE HERE:
     //
     // 1. Get all the choice elements. You can use the `document.querySelectorAll()` method.
 
+    const allChoices = document.querySelectorAll("input[name='choice']");
 
     // 2. Loop through all the choice elements and check which one is selected
-      // Hint: Radio input elements have a property `.checked` (e.g., `element.checked`).
-      //  When a radio input gets selected the `.checked` property will be set to true.
-      //  You can use check which choice was selected by checking if the `.checked` property is true.
-
-
-    // 3. If an answer is selected (`selectedAnswer`), check if it is correct and move to the next question
-      // Check if selected answer is correct by calling the quiz method `checkAnswer()` with the selected answer.
-      // Move to the next question by calling the quiz method `moveToNextQuestion()`.
-      // Show the next question by calling the function `showQuestion()`.
-  }  
-
+    // Hint: Radio input elements have a property `.checked` (e.g., `element.checked`).
+    //  When a radio input gets selected the `.checked` property will be set to true.
+    //  You can use check which choice was selected by checking if the `.checked` property is true.
 
+    allChoices.forEach((input) => {
+      if (input.checked) {
+        selectedAnswer = input.value;
+      }
+    });
 
+    // 3. If an answer is selected (`selectedAnswer`), check if it is correct and move to the next question
+    // Check if selected answer is correct by calling the quiz method `checkAnswer()` with the selected answer.
+    // Move to the next question by calling the quiz method `moveToNextQuestion()`.
+    // Show the next question by calling the function `showQuestion()`.
+
+    if (selectedAnswer) {
+      quiz.checkAnswer(selectedAnswer);
+      quiz.moveToNextQuestion();
+      showQuestion();
+    }
+  }
 
   function showResults() {
-
     // YOUR CODE HERE:
     //
     // 1. Hide the quiz view (div#quizView)
     quizView.style.display = "none";
 
     // 2. Show the end view (div#endView)
     endView.style.display = "flex";
-    
+
     // 3. Update the result container (div#result) inner text to show the number of correct answers out of total questions
-    resultContainer.innerText = `You scored 1 out of 1 correct answers!`; // This value is hardcoded as a placeholder
+    resultContainer.innerText = `You scored ${quiz.score} out of ${questions.length} correct answers!`;
   }
-
-});
+});

src/question.js

@@ -1,7 +1,19 @@
 class Question {
-    // YOUR CODE HERE:
-    //
-    // 1. constructor (text, choices, answer, difficulty)
+  // 1. constructor (text, choices, answer, difficulty)
+  constructor(text, choices, correctAnswer, difficulty) {
+    this.text = text;
+    this.choices = choices;
+    this.correctAnswer = correctAnswer;
+    this.difficulty = difficulty;
+  }
 
-    // 2. shuffleChoices()
-}
+  // 2. shuffleChoices()
+  shuffleChoices() {
+    for (let i = this.choices.length - 1; i > 0; i--) {
+      const randomQuestions = Math.floor(Math.random() * (i + 1));
+      const temp = this.choices[i];
+      this.choices[i] = this.choices[randomQuestions];
+      this.choices[randomQuestions] = temp;
+    }
+  }
+}

src/quiz.js

@@ -1,15 +1,56 @@
 class Quiz {
-    // YOUR CODE HERE:
-    //
-    // 1. constructor (questions, timeLimit, timeRemaining)
+  constructor(questions, timeLimit, timeRemaining) {
+    this.questions = questions;
+    this.timeLimit = timeLimit;
+    this.timeRemaining = timeRemaining;
+    this.score = 0; // ← renamed from correctAnswers
+    this.currentQuestionIndex = 0;
+  }
 
-    // 2. getQuestion()
-
-    // 3. moveToNextQuestion()
+  getQuestion() {
+    return this.questions[this.currentQuestionIndex];
+  }
 
-    // 4. shuffleQuestions()
+  moveToNextQuestion() {
+    this.currentQuestionIndex++;
+  }
 
-    // 5. checkAnswer(answer)
+  shuffleQuestions() {
+    for (let i = this.questions.length - 1; i > 0; i--) {
+      const j = Math.floor(Math.random() * (i + 1));
+      [this.questions[i], this.questions[j]] = [
+        this.questions[j],
+        this.questions[i],
+      ];
+    }
+  }
 
-    // 6. hasEnded()
-}
+  checkAnswer(answer) {
+    const currentQuestion = this.questions[this.currentQuestionIndex];
+    console.log("Respuesta seleccionada:", answer);
+    console.log("Respuesta correcta:", currentQuestion.correctAnswer);
+    console.log("¿Son iguales?", answer === currentQuestion.correctAnswer);
+    if (answer === currentQuestion.correctAnswer) {
+      this.score++;
+    }
+  }
+
+  hasEnded() {
+    return this.currentQuestionIndex === this.questions.length;
+  }
+
+  filterQuestionsByDifficulty(difficulty) {
+    if (difficulty >= 1 && difficulty <= 3) {
+      this.questions = this.questions.filter(
+        (q) => q.difficulty === difficulty,
+      );
+    }
+  }
+
+  averageDifficulty() {
+    return (
+      this.questions.reduce((sum, q) => sum + q.difficulty, 0) /
+      this.questions.length
+    );
+  }
+}