-
+
diff --git a/src/index.js b/src/index.js
index 03737ba3..50794c52 100644
--- a/src/index.js
+++ b/src/index.js
@@ -89,86 +89,105 @@ 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
-
-
- // 2. Update the green progress bar
- // Update the green progress bar (div#progressBar) width so that it shows the percentage of questions answered
+ // Update the green progress bar
+ const progressPercentage = ((quiz.currentQuestionIndex + 1) / quiz.questions.length) * 100;
+ progressBar.style.width = `${progressPercentage}%`;
- progressBar.style.width = `65%`; // This value is hardcoded as a placeholder
-
-
+ // Update the question count text
+ questionCount.innerText = `Question ${quiz.currentQuestionIndex + 1} of ${quiz.questions.length}`;
+
+ // Display the question text
+ questionContainer.innerText = question.text;
+
+ // Create and display new radio input with a label for each choice
+ question.choices.forEach((choice, index) => {
+ // Create radio input element
+ const radioInput = document.createElement("input");
+ radioInput.type = "radio";
+ radioInput.name = "choice";
+ radioInput.id = `choice${index}`;
+ radioInput.value = choice;
+
+ // Create label element
+ const label = document.createElement("label");
+ label.htmlFor = `choice${index}`;
+ label.innerText = choice;
+
+ // Create a div to contain the radio and label
+ const choiceDiv = document.createElement("div");
+ choiceDiv.classList.add("choice");
+ choiceDiv.appendChild(radioInput);
+ choiceDiv.appendChild(label);
+
+ // Add the choice to the choice container
+ choiceContainer.appendChild(choiceDiv);
+ });
+ }
- // 3. Update the question count text
- // Update the question count (div#questionCount) show the current question out of total questions
+ function nextButtonHandler() {
+ const choiceElements = document.querySelectorAll('input[name="choice"]');
+ let selectedAnswer = null;
- questionCount.innerText = `Question 1 of 10`; // This value is hardcoded as a placeholder
-
-
+ choiceElements.forEach(choiceElement => {
+ if (choiceElement.checked) {
+ selectedAnswer = choiceElement.value;
+ }
+ });
- // 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:
- /*
-
-
-
- */
- // 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.
-
+ if (selectedAnswer !== null) {
+ quiz.checkAnswer(selectedAnswer);
+ quiz.moveToNextQuestion();
+ showQuestion();
+ } else {
+ alert("Please select an answer before proceeding!");
+ }
}
+ function showResults() {
+ quizView.style.display = "none";
+ endView.style.display = "flex";
+ resultContainer.innerText = `You scored ${quiz.correctAnswers} out of ${quiz.questions.length} correct answers!`;
+ clearInterval(timer);
+ }
-
- function nextButtonHandler () {
- let selectedAnswer; // A variable to store the selected answer value
-
-
-
- // YOUR CODE HERE:
- //
- // 1. Get all the choice elements. You can use the `document.querySelectorAll()` method.
-
-
- // 2. Loop through all the choice elements and check which one is selected
- // Hint: Radio input elements have a property `.checked` (e.g., `element.checked`).
- // When a radio input gets selected the `.checked` property will be set to true.
- // You can use check which choice was selected by checking if the `.checked` property is true.
-
+ function startTimer() {
+ timer = setInterval(() => {
+ quiz.timeRemaining--;
- // 3. If an answer is selected (`selectedAnswer`), check if it is correct and move to the next question
- // Check if selected answer is correct by calling the quiz method `checkAnswer()` with the selected answer.
- // Move to the next question by calling the quiz method `moveToNextQuestion()`.
- // Show the next question by calling the function `showQuestion()`.
- }
-
-
-
-
- function showResults() {
+ const minutes = Math.floor(quiz.timeRemaining / 60).toString().padStart(2, "0");
+ const seconds = (quiz.timeRemaining % 60).toString().padStart(2, "0");
- // YOUR CODE HERE:
- //
- // 1. Hide the quiz view (div#quizView)
- quizView.style.display = "none";
+ const timeRemainingContainer = document.getElementById("timeRemaining");
+ timeRemainingContainer.innerText = `${minutes}:${seconds}`;
+
+ if (quiz.timeRemaining <= 0) {
+ clearInterval(timer);
+ showResults();
+ }
+ }, 1000);
+ }
- // 2. Show the end view (div#endView)
- endView.style.display = "flex";
+ function resetQuizHandler() {
+ endView.style.display = "none";
+ quizView.style.display = "block";
- // 3. Update the result container (div#result) inner text to show the number of correct answers out of total questions
- resultContainer.innerText = `You scored 1 out of 1 correct answers!`; // This value is hardcoded as a placeholder
+ quiz.currentQuestionIndex = 0;
+ quiz.correctAnswers = 0;
+ quiz.timeRemaining = quiz.timeLimit;
+
+ const minutes = Math.floor(quiz.timeRemaining / 60).toString().padStart(2, "0");
+ const seconds = (quiz.timeRemaining % 60).toString().padStart(2, "0");
+ timeRemainingContainer.innerText = `${minutes}:${seconds}`;
+
+ quiz.shuffleQuestions();
+
+ clearInterval(timer);
+ startTimer();
+
+ showQuestion();
}
-
});
\ No newline at end of file
diff --git a/src/question.js b/src/question.js
index 68f6631a..837b0a75 100644
--- a/src/question.js
+++ b/src/question.js
@@ -1,7 +1,15 @@
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;
+ }
- // 2. shuffleChoices()
+ shuffleChoices() {
+ for (let i = this.choices.length -1; i > 0; i--) {
+ const j = Math.floor(Math.random() * (i+1));
+ [this.choices[i], this.choices[j]] = [this.choices[j], this.choices[i]];
+ }
+ }
}
\ No newline at end of file
diff --git a/src/quiz.js b/src/quiz.js
index d94cfd14..51dd6ff1 100644
--- a/src/quiz.js
+++ b/src/quiz.js
@@ -1,15 +1,62 @@
class Quiz {
- // YOUR CODE HERE:
- //
- // 1. constructor (questions, timeLimit, timeRemaining)
-
- // 2. getQuestion()
+ constructor(questions, timeLimit, timeRemaining) {
+ this.questions = questions;
+ this.timeLimit = timeLimit;
+ this.timeRemaining = timeRemaining;
+ this.correctAnswers = 0;
+ this.currentQuestionIndex = 0; // Fixed: changed from correctQuestionIndex to currentQuestionIndex
+ }
+
+ getQuestion() {
+ return this.questions[this.currentQuestionIndex];
+ }
- // 3. moveToNextQuestion()
+ moveToNextQuestion() {
+ this.currentQuestionIndex++; // Fixed: increment index, don't return question
+ }
- // 4. shuffleQuestions()
+ shuffleQuestions() {
+ for (let i = this.questions.length - 1; i > 0; i--) { // Fixed: changed i-0 to i>0
+ const j = Math.floor(Math.random() * (i + 1));
+ [this.questions[i], this.questions[j]] = [this.questions[j], this.questions[i]];
+ }
+ }
- // 5. checkAnswer(answer)
+ checkAnswer(answer) {
+ const currentQuestion = this.getQuestion();
+ if (answer === currentQuestion.answer) {
+ this.correctAnswers++;
+ return true;
+ }
+ return false;
+ }
- // 6. hasEnded()
-}
\ No newline at end of file
+ hasEnded() {
+ return this.currentQuestionIndex >= this.questions.length;
+ }
+ filterQuestionsByDifficulty(difficulty) {
+ // Check if difficulty is a number between 1 and 3
+ if (typeof difficulty === 'number' && difficulty >= 1 && difficulty <= 3) {
+ // Use filter() to keep only questions with the specified difficulty
+ this.questions = this.questions.filter(question => {
+ return question.difficulty === difficulty;
+ });
+ }
+ // If difficulty is not valid (not a number between 1-3), do nothing
+ }
+ averageDifficulty() {
+ // Handle edge case: empty questions array
+ if (this.questions.length === 0) {
+ return 0;
+ }
+
+ // Use reduce() to sum up all difficulty values
+ const totalDifficulty = this.questions.reduce((sum, question) => {
+ // Add current question's difficulty to the running sum
+ return sum + question.difficulty;
+ }, 0); // Start with initial value of 0
+
+ // Calculate and return the average
+ return totalDifficulty / this.questions.length;
+ }
+}