Solved lab

index.html

@@ -23,7 +23,7 @@ <h1>JavaScript Quiz</h1>
           <div id="question"></div>
           <ul id="choices"></ul>
         </div>
-        <div id="timeRemaining">Remaining Time: <span>00:00</span></div>
+        <div id="timeRemaining">Remaining Time: <span id="timeValue">00:00</span></div>
         <button id="nextButton" class="button-primary">Answer</button>
       </div>
 
@@ -39,7 +39,7 @@ <h1>JavaScript Quiz</h1>
           <div id="result"></div>
         </div>
         <!-- The below 'Restart Quiz' button is commented out because it is not used initially -->
-        <!-- <button id="restartButton" class="button-secondary">Restart Quiz</button> -->
+        <button id="restartButton" class="button-secondary">Restart Quiz</button>
       </div>
     </div>
 

src/index.js

@@ -23,7 +23,7 @@ document.addEventListener("DOMContentLoaded", () => {
 
 
   /************  QUIZ DATA  ************/
-  
+
   // Array with the quiz questions
   const questions = [
     new Question("What is 2 + 2?", ["3", "4", "5", "6"], "4", 1),
@@ -36,7 +36,7 @@ document.addEventListener("DOMContentLoaded", () => {
 
 
   /************  QUIZ INSTANCE  ************/
-  
+
   // Create a new Quiz instance object
   const quiz = new Quiz(questions, quizDuration, quizDuration);
   // Shuffle the quiz questions
@@ -65,7 +65,7 @@ document.addEventListener("DOMContentLoaded", () => {
   /************  EVENT LISTENERS  ************/
 
   nextButton.addEventListener("click", nextButtonHandler);
-
+  restartButton.addEventListener("click", restartQuiz);
 
 
   /************  FUNCTIONS  ************/
@@ -74,7 +74,23 @@ document.addEventListener("DOMContentLoaded", () => {
   // nextButtonHandler() - Handles the click on the next button
   // showResults() - Displays the end view and the quiz results
 
+  function updateTimer() {
+    quiz.timeRemaining--;
 
+    const minutes = Math.floor(quiz.timeRemaining / 60).toString().padStart(2, "0");
+    const seconds = (quiz.timeRemaining % 60).toString().padStart(2, "0");
+document.getElementById("timeRemaining").innerText = `${minutes}:${seconds}`;
+
+
+    if (quiz.timeRemaining <= 0) {
+      clearInterval(timer);
+      showResults();
+    }
+  }
+
+  function startTimer() {
+    timer = setInterval(updateTimer, 1000);
+  }
 
   function showQuestion() {
     // If the quiz has ended, show the results
@@ -91,84 +107,136 @@ document.addEventListener("DOMContentLoaded", () => {
     const question = quiz.getQuestion();
     // 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.question;
     // 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
+
+    const progress = (quiz.currentQuestionIndex / quiz.questions.length) * 100;
+    progressBar.style.width = `${progress}%`; // This value is hardcoded as a placeholder
 
 
 
     // 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 =
+      `Question ${quiz.currentQuestionIndex + 1} of ${quiz.questions.length}`;//  This value is hardcoded as a placeholder
+
 
 
-
     // 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:
-      /* 
-          <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.
+    // 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.
+
+    question.choices.forEach(choice => {
+      const input = document.createElement("input");
+      input.type = "radio";
+      input.name = "choice";
+      input.value = choice;
+
+      const label = document.createElement("label");
+      label.innerText = choice;
+
+      choiceContainer.appendChild(input);
+      choiceContainer.appendChild(label);
+      choiceContainer.appendChild(document.createElement("br"));
+    });
 
   }
 
 
-  
-  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 choices = 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.
+    // 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.
+    choices.forEach(choice => {
+      if (choice.checked) {
+        selectedAnswer = choice.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()`.
-  }  
+    // 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 !== undefined) {
+      quiz.checkAnswer(selectedAnswer);
+      quiz.moveToNextQuestion();
+      showQuestion();
+    }
+  }
 
 
   function showResults() {
 
     // YOUR CODE HERE:
     //
+    // ✔️ DAY 4: DETENER EL TIMER
+    clearInterval(timer);
     // 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.correctAnswers} out of ${quiz.questions.length} correct answers!`; // This value is hardcoded as a placeholder
   }
-
+
+function restartQuiz() {
+  endView.style.display = "none";
+  quizView.style.display = "block";
+
+  quiz.currentQuestionIndex = 0;
+  quiz.correctAnswers = 0;
+
+  quiz.shuffleQuestions();
+
+  // Reiniciar tiempo
+  quiz.timeRemaining = quiz.timeLimit;
+  startTimer();
+
+  showQuestion();
+}
+
+  /***************************************************************
+   *  START QUIZ (BEGINNING)
+   ***************************************************************/
+  showQuestion();
+  startTimer(); // ✔️ DAY 4 — iniciar temporizador al comenzar
+
+
 });

src/question.js

@@ -2,6 +2,21 @@ class Question {
     // YOUR CODE HERE:
     //
     // 1. constructor (text, choices, answer, difficulty)
-
+    constructor(question, choices, answer, difficulty) {
+    this.question = question;
+    this.choices = choices;
+    this.answer = answer;
+    this.difficulty = difficulty;
+    }
     // 2. shuffleChoices()
-}
+
+    shuffleChoices(){
+        let array = this.choices;
+        let randomIdex;
+        for (let i =array.length -1; i > 0; i--){
+            randomIdex = Math.floor(Math.random()*(i+1));
+            [array[i], array[randomIdex]] = [array[randomIdex], array[i]];
+        }
+    }
+}
+