-
+
diff --git a/src/index.js b/src/index.js
index 03737ba3..75ce4dee 100644
--- a/src/index.js
+++ b/src/index.js
@@ -14,39 +14,60 @@ 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(
+ "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
];
+ console.log(questions[0]);
const quizDuration = 120; // 120 seconds (2 minutes)
-
/************ QUIZ INSTANCE ************/
-
+ //Review the starter code provided in the index.js and index.html files.
+ /*Implement the DOM logic - function showQuestion().
+Implement the DOM logic - function nextButtonHandler().
+Implement the DOM logic - function showResults().
+Implement a “Restart Quiz” button and the logic to restart the quiz.
+Commit your changes and push them to GitHub.*/
+ {
+ }
// 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
@@ -56,26 +77,20 @@ document.addEventListener("DOMContentLoaded", () => {
// Show first question
showQuestion();
-
/************ TIMER ************/
let timer;
-
/************ 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()) {
@@ -83,6 +98,12 @@ document.addEventListener("DOMContentLoaded", () => {
return;
}
+ const minutes = Math.floor(quiz.timeRemaining / 60)
+ .toString()
+ .padStart(2, "0");
+ const seconds = (quiz.timeRemaining % 60).toString().padStart(2, "0");
+ timeRemainingContainer.innerText = `${minutes}:${seconds}`;
+
// Clear the previous question text and question choices
questionContainer.innerText = "";
choiceContainer.innerHTML = "";
@@ -91,74 +112,90 @@ 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
+ const questionTag = document.createElement("p");
+ questionTag.innerText = question.text;
+ questionContainer.appendChild(questionTag);
-
// 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
-
+ progressBar.style.width = `${
+ (quiz.currentQuestionIndex / quiz.questions.length) * 100
+ }%`; // 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
+ function updateQuestionCount() {
+ // Display 1-based index for user (questions are typically 1-based from a user perspective)
+ questionCount.innerText = `Question ${quiz.currentQuestionIndex + 1} of ${
+ quiz.questions.length
+ }`;
+ }
+ updateQuestionCount();
-
// 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:
+ /*
*/
- // 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.
+ question.choices.forEach((choice) => {
+ if (typeof choice !== "undefined") {
+ const inputElement = document.createElement("input");
+ inputElement.type = "radio";
+ inputElement.name = "choice";
+ inputElement.value = choice;
+
+ const labelElement = document.createElement("label");
+ labelElement.innerText = choice;
+
+ choiceContainer.appendChild(inputElement);
+ choiceContainer.appendChild(labelElement);
+ choiceContainer.appendChild(document.createElement("br"));
+ }
+ });
}
+ function nextButtonHandler() {
+ // Get the selected choice
+ const selectedChoiceElement = document.querySelector(
+ 'input[name="choice"]:checked'
+ );
-
- function nextButtonHandler () {
- let selectedAnswer; // A variable to store the selected answer value
-
+ if (selectedChoiceElement) {
+ // Retrieve the user's selected answer
+ const selectedAnswer = selectedChoiceElement.value;
+ // Check if the selected answer is correct
+ quiz.checkAnswer(selectedAnswer);
- // 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.
-
-
- // 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()`.
- }
-
+ // Move to the next question in the quiz
+ quiz.moveToNextQuestion();
+ // Show the next question or results if the quiz is over
+ showQuestion();
+ console.log("quiz.correctAnswers", quiz.correctAnswers);
+ } else {
+ // If no choice is selected, alert the user to select an answer
+ alert("Please select an answer before proceeding to the next question!");
+ }
+ }
function showResults() {
-
// YOUR CODE HERE:
//
// 1. Hide the quiz view (div#quizView)
@@ -166,9 +203,54 @@ document.addEventListener("DOMContentLoaded", () => {
// 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 ${questions.length} correct answers!`; // This value is hardcoded as a placeholder
}
+
+ const restartButton = document.getElementById("restartButton");
+ function resetQuiz() {
+ // Reset quiz-related variables
+ quiz.currentQuestionIndex = 0;
+ quiz.correctAnswers = 0;
+ quiz.timeRemaining = quizDuration;
+
+ // Optionally clear any selections or inputs
+ const questionInputs = document.querySelectorAll('input[name="choice"]');
+ questionInputs.forEach((input) => (input.checked = false));
+
+ // Reset the views to show the first question
+ showQuestion();
+
+ // Display the quiz view and hide the end view
+ quizView.style.display = "block";
+ endView.style.display = "none";
+
+ // Reset progress bar and UI updates if needed
+ progressBar.style.width = "0%";
+
+ clearInterval(timer);
+
+ setInterval(showTimer, 1000);
+ }
+
+ // Attach event listener to the Restart button
+ restartButton.addEventListener("click", resetQuiz);
+
+ function showTimer() {
+ quiz.timeRemaining--;
+ const minutes = Math.floor(quiz.timeRemaining / 60)
+ .toString()
+ .padStart(2, "0");
+ const seconds = (quiz.timeRemaining % 60).toString().padStart(2, "0");
+ timeRemainingContainer.innerText = `${minutes}:${seconds}`;
-});
\ No newline at end of file
+ if (quiz.timeRemaining < 1) {
+ clearInterval(timer);
+ showResults();
+ }
+ }
+
+ setInterval(showTimer, 1000);
+});
diff --git a/src/question.js b/src/question.js
index 68f6631a..001a5932 100644
--- a/src/question.js
+++ b/src/question.js
@@ -1,7 +1,20 @@
+
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; i > 0; i--) {
+ const j = Math.floor(Math.random() * (i));
+ [this.choices[i], this.choices[j]] = [this.choices[j], this.choices[i]];
+ }
+ return this.choices;
+ }
}
\ No newline at end of file
diff --git a/src/quiz.js b/src/quiz.js
index d94cfd14..c3b7f5f7 100644
--- a/src/quiz.js
+++ b/src/quiz.js
@@ -1,15 +1,57 @@
-class Quiz {
- // YOUR CODE HERE:
- //
- // 1. constructor (questions, timeLimit, timeRemaining)
+class Quiz {
+ constructor (questions, timeLimit, timeRemaining){
+ this.questions = questions;
+ this.timeLimit = timeLimit;
+ this.timeRemaining = timeRemaining;
+ this.correctAnswers=0;
+ this.currentQuestionIndex=0;
+ }
+
+
+ getQuestion() {
+ return this.questions[this.currentQuestionIndex];
+ }
+
+ moveToNextQuestion(){
+ this.currentQuestionIndex++;
+ }
- // 2. getQuestion()
+ shuffleQuestions(){
+ for (let i = this.questions.length -1; i > 0; i--) {
+ const j = Math.floor(Math.random() * (i));
+ [this.questions[i], this.questions[j]] = [this.questions[j], this.questions[i]];
+ }
+ console.log(this.questions)
+ }
- // 3. moveToNextQuestion()
- // 4. shuffleQuestions()
+ checkAnswer(answer){
+ if (answer === this.getQuestion().answer) {
+ this.correctAnswers++;
+ }
+ }
+
+ hasEnded(){
+ if (this.currentQuestionIndex < this.questions.length) {
+ return false;
+ } else if (this.currentQuestionIndex = this.questions.length) {
+ return true;
+ }
+ }
- // 5. checkAnswer(answer)
- // 6. hasEnded()
-}
\ No newline at end of file
+ filterQuestionsByDifficulty(difficulty) {
+ if (difficulty >= 1 && difficulty <= 3) {
+ this.questions = this.questions.filter((question) => question.difficulty === difficulty);
+ }
+ }
+
+ averageDifficulty() {
+ const reduce = this.questions.reduce((accumulator, current) => accumulator + current.difficulty, 0);
+
+ const avg = reduce / this.questions.length;
+
+ return avg;
+ }
+
+}