Solved Mini Project

index.html

@@ -18,7 +18,7 @@ <h1>JavaScript Quiz</h1>
           <div id="progressBar"></div>
         </div>
         <div id="questionCount"></div>
-
+        
         <div class="content">
           <div id="question"></div>
           <ul id="choices"></ul>
@@ -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

@@ -98,39 +98,49 @@ document.addEventListener("DOMContentLoaded", () => {
     //
     // 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
+    let percentage = (100/quiz.questions.length) * quiz.currentQuestionIndex;
+    progressBar.style.width = `${percentage}%`; // 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 = current.question of questions.length
+    let questionCount = quiz.currentQuestionIndex +1;
+    questionCount.innerText = `${questionCount} 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`.
+
+
+    question.choices.forEach(choice => {
+      // pour chaque choix, on crée un radio input 
+    choiceContainer.innerHTML+= `<input type="radio" name="choice" value="${choice}">
+          <label>${choice}</label>
+        <br>`;
+
       // 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.
 
+  });
   }
 
-
 
   function nextButtonHandler () {
     let selectedAnswer; // A variable to store the selected answer value
@@ -140,13 +150,28 @@ document.addEventListener("DOMContentLoaded", () => {
     // YOUR CODE HERE:
     //
     // 1. Get all the choice elements. You can use the `document.querySelectorAll()` method.
-
+      let allChoice = document.querySelectorAll("input");
+
 
     // 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.
-
+      allChoice.forEach((select) => {
+        console.log(select.checked);
+        if (select.checked) {
+           selectedAnswer = select.value;
+        };
+      });
+
+      if (selectedAnswer) {
+        //1er hint : appel la méthode avec selectedanswer
+       quiz.checkAnswer(selectedAnswer);
+        //2eme hint : 
+        quiz.moveToNextQuestion();
+        //3eme hint : 
+        showQuestion();
+      }
 
     // 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.
@@ -168,7 +193,34 @@ document.addEventListener("DOMContentLoaded", () => {
     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
+
+    const resultContainer = document.querySelector("#result");
+    resultContainer.innerText = `You scored ${quiz.correctAnswers} out of ${quiz.questions.length} correct answers!`; // This value is hardcoded as a placeholder
   }
-
-});
+
+
+  const restartButton = document.getElementById("restartButton");
+
+  restartButton.addEventListener("click", () => {
+  restartButton.classList.add("hidden");
+  quizView.style.display = "block";
+  endView.style.display = "none"; 
+  quiz.currentQuestionIndex = 0;
+  quiz.correctAnswers = 0;
+  quiz.shuffleQuestions();
+  showQuestion();
+  quiz.timeRemaining = quizDuration;
+  timeRemainingContainer.innerText = `${Math.floor(quiz.timeRemaining / 60).toString().padStart(2, "0")}:${(quiz.timeRemaining % 60).toString().padStart(2, "0")}`;
+}); 
+
+
+interval = setInterval(() =>{
+ timeRemainingContainer.innerText = `${Math.floor(quiz.timeRemaining / 60).toString().padStart(2, "0")}:${(quiz.timeRemaining % 60).toString().padStart(2, "0")}`;
+ quiz.timeRemaining -= 1;
+ if (quiz.timeRemaining === 0) {
+  showResults();
+  clearInterval(interval);
+ }
+}, 1000);
+
+})

src/question.js

@@ -1,7 +1,17 @@
 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(){
+        for(let i = 0; i < this.choices.length; i++){   
+            const shuffle = Math.floor(Math.random() * (i + 1));
+            [this.choices[i], this.choices[shuffle]] = [this.choices[shuffle], this.choices[i]];
+        }
+    }
+
+        }
 
-    // 2. shuffleChoices()
-}

src/quiz.js

@@ -1,15 +1,57 @@
 class Quiz {
     // YOUR CODE HERE:
-    //
-    // 1. constructor (questions, timeLimit, timeRemaining)
+    constructor(questions, timeLimit, timeRemaining) {
+        this.questions = questions;
+        this.timeLimit = timeLimit;
+        this.timeRemaining = timeRemaining;
+        this.correctAnswers = 0;
+    this.currentQuestionIndex = 0;
+}
 
-    // 2. getQuestion()
-
-    // 3. moveToNextQuestion()
+getQuestion() {
+    return this.questions[this.currentQuestionIndex];
+}
 
-    // 4. shuffleQuestions()
+moveToNextQuestion() {
+    this.currentQuestionIndex += 1;
+}
 
-    // 5. checkAnswer(answer)
+shuffleQuestions() {
+    for(let i = 0; i < this.questions.length; i++){   
+        const shuffle = Math.round(Math.random() * (i + 1));
+        [this.questions[i], this.questions[shuffle]] = 
+        [this.questions[shuffle], this.questions[i]];
+    }
+}
+
+checkAnswer(answer) {
+    if (this.questions[this.currentQuestionIndex].answer === answer){
+        this.correctAnswers += 1;
+        return true;
+    }
+    return false;
+}
+
+hasEnded() {
+    if (this.currentQuestionIndex === this.questions.length) {
+        return true;
+    } else {
+        return false; 
+    }
+}
+
+filterQuestionsByDifficulty(difficulty) {
+    if (difficulty >= 1 && difficulty <= 3) {
+        this.questions = this.questions.filter((question) => { 
+           return question.difficulty === difficulty
+        })
+    }
+}
+
+averageDifficulty() {
+ return this.questions.reduce((acc, question) => {
+        return acc + question.difficulty
+    }, 0) / this.questions.length
+}
 
-    // 6. hasEnded()
 }

styles/style.css

@@ -6,24 +6,35 @@
 }
 
 body {
+    display: grid;
+    grid-auto-flow: row;
+    justify-content: center;
+    align-items: center;
+    height: 900px;
+    width: 100%;
+    background-image: url('/styles/images/1.jpg');
+    background-size: cover;
+    background-repeat: no-repeat;
     font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
     background-color: #f4f4f4;
     color: #333;
     line-height: 1.6;
-    padding: 20px;
+    padding: 100px;
 }
 
 header {
+    text-align: center;
     padding: 0 20px;
+    text-shadow: 0 2px 5px rgba(0,0,0,0.5);
 }
 
 .container {
-    height: 540px;
-    max-width: 600px;
+    height: 600px;
+    width: 500px;
     margin: auto;
     padding: 20px;
     background: #fff;
-    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
+    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
 }
 
 #quizView, #endView {
@@ -49,14 +60,15 @@ button {
     cursor: pointer;
     font-size: 16px;
     width: 160px;
+    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
 }
 
 .button-primary {
-    background-color: #4caf50;
+    background-color: #8ca4b4;
 }
 
 .button-primary:hover {
-    background-color: #46a049;
+    background-color:#8ca4b4;
 }
 
 .button-secondary {
@@ -73,7 +85,7 @@ button {
 
 
 button:hover {
-    background-color: #4cae4c;
+    background-color: #a0eaa0;
 }
 
 ul {
@@ -132,7 +144,7 @@ input[type="radio"] {
 
 #progressBar {
     height: 20px;
-    background-color: #4caf50;
+    background-color: #537ea9;
     width: 0%;
     border-radius: 8px;
 }
@@ -157,7 +169,7 @@ input[type="radio"] {
 #resultProgressBar {
     width: 100%;
     height: 20px;
-    background-color: #4caf50;
+    background-color: #537ea9;
     width: 100%;
     border-radius: 8px;
 }

tests/quiz.spec.js

@@ -419,6 +419,8 @@ describe("Quiz", () => {
       // Check that the averageDifficulty() method returns the correct average when called
       expect(quiz.averageDifficulty()).toEqual(1.8);
     });
+
+
   }); 
 });