solved mini project

index.html

@@ -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

@@ -10,72 +10,109 @@ document.addEventListener("DOMContentLoaded", () => {
   const questionContainer = document.querySelector("#question");
   const choiceContainer = document.querySelector("#choices");
   const nextButton = document.querySelector("#nextButton");
+  const restartButton = document.querySelector("#restartButton");
 
   // 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(
+      "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
+    ),
     // Add more questions here
   ];
-  const quizDuration = 120; // 120 seconds (2 minutes)
-
+  const quizDuration = 20; // 120 seconds (2 minutes)
 
   /************  QUIZ INSTANCE  ************/
-  
+
   // Create a new Quiz instance object
   const quiz = new Quiz(questions, quizDuration, quizDuration);
   // 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
   const timeRemainingContainer = document.getElementById("timeRemaining");
   timeRemainingContainer.innerText = `${minutes}:${seconds}`;
-
+  let timer;
   // Show first question
   showQuestion();
-
-
+  startTimer();
   /************  TIMER  ************/
-
-  let timer;
-
+  function startTimer() {
+    timeRemainingContainer.innerText = `${minutes}:${seconds}`;
+
+    timer = setInterval(() => {
+      // console.log(quiz.timeRemaining)
+      const minutes = Math.floor(quiz.timeRemaining / 60)
+        .toString()
+        .padStart(2, "0");
+      const seconds = (quiz.timeRemaining % 60).toString().padStart(2, "0");
+
+      if (quiz.timeRemaining) {
+        timeRemainingContainer.innerText = `${minutes}:${seconds}`;
+      } else if (!quiz.timeRemaining) {
+        clearInterval(timer);
+        showResults();
+      }
+
+      quiz.timeRemaining--;
+    }, 1000);
+  }
 
   /************  EVENT LISTENERS  ************/
 
   nextButton.addEventListener("click", nextButtonHandler);
 
-
+  restartButton.addEventListener("click", () => {
+    endView.style.display = "none";
+    quizView.style.display = "block";
+    quiz.currentQuestionIndex = 0;
+    quiz.correctAnswers = 0;
+    quiz.shuffleQuestions();
+    quiz.timeRemaining = quizDuration;
+    startTimer();
+    showQuestion();
+  });
 
   /************  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 +126,93 @@ document.addEventListener("DOMContentLoaded", () => {
 
     // Get the current question from the quiz by calling the Quiz class method `getQuestion()`
     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.text;
+    const questionNumber = 1;
 
-
     // 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 progressPercent =
+      ((quiz.currentQuestionIndex + 1) / quiz.questions.length) * 100 + "%";
+    console.log(progressPercent, quiz.currentQuestionIndex);
+    progressBar.style.width = `${progressPercent}`; // This value is hardcoded as a placeholder
 
-    // 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 = `Question ${quiz.currentQuestionIndex + 1} of ${
+      quiz.questions.length
+    }`; //  This value is hardcoded as a placeholder
+
+    quiz.questions[quiz.currentQuestionIndex].choices.forEach((choice) => {
+      const choiceDiv = document.createElement("div");
+      choiceDiv.innerHTML = `<input type="radio" name="choice" value="${choice}">
+          <label>${choice}</label>
+        <br>`;
+      choiceContainer.appendChild(choiceDiv);
+    });
     // 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.
   }
 
-
-
-  function nextButtonHandler () {
+  function nextButtonHandler() {
     let selectedAnswer; // A variable to store the selected answer value
-
-
+    const allChoices = document.querySelectorAll("input");
+    // console.log(allChoices)
+    allChoices.forEach((choice) => {
+      if (choice.checked) {
+        selectedAnswer = choice.value;
+        console.log(selectedAnswer);
+      }
+    });
+    quiz.checkAnswer(selectedAnswer);
+    quiz.moveToNextQuestion();
+    showQuestion();
 
     // YOUR CODE HERE:
     //
     // 1. Get all the choice elements. You can use the `document.querySelectorAll()` method.
 
-
     // 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.
 
-
     // 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()`.
+  }
 
   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";
-
+    clearInterval(timer);
+
     // 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
   }
-
-});
+});

src/question.js

@@ -1,7 +1,35 @@
+// class Question {
+//     // YOUR CODE HERE:
+//     //
+//     // 1. constructor (text, choices, answer, difficulty)
+
+//     // 2. shuffleChoices()
+
+
 class Question {
-    // YOUR CODE HERE:
-    //
-    // 1. constructor (text, choices, answer, difficulty)
+    constructor(text, choices, answer, difficulty) {
+        this.text = text;
+        this.choices = choices;
+        this.answer = answer;
+        this.difficulty = difficulty;
+
+    }
+
+    shuffleChoices() {
+        let currentIndex = this.choices.length;
+        while(currentIndex != 0){
+            let randomIndex = Math.floor(Math.random() * currentIndex);
+            currentIndex--;
+            var temp = this.choices[currentIndex];
+            this.choices[currentIndex]= this.choices[randomIndex];
+            this.choices[randomIndex] = temp;
+        }
+
+
+}
+
+}
+
 
-    // 2. shuffleChoices()
-}
+// let question1 = new Question("food",[1, 7, 4, 5], 4, "hard");
+// console.log(question1.shuffleChoices());