-
+
diff --git a/src/index.js b/src/index.js
index 03737ba3..73b22278 100644
--- a/src/index.js
+++ b/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
@@ -91,48 +107,64 @@ 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:
- /*
-
-
-
- */
- // 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:
+ /*
+
+
+
+ */
+ // 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
@@ -140,35 +172,71 @@ document.addEventListener("DOMContentLoaded", () => {
// 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
+
+
});
\ No newline at end of file
diff --git a/src/question.js b/src/question.js
index 68f6631a..1b8c0a45 100644
--- a/src/question.js
+++ b/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()
-}
\ No newline at end of file
+
+ 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]];
+ }
+ }
+}
+
diff --git a/src/quiz.js b/src/quiz.js
index d94cfd14..d087624e 100644
--- a/src/quiz.js
+++ b/src/quiz.js
@@ -1,15 +1,126 @@
class Quiz {
- // YOUR CODE HERE:
- //
- // 1. constructor (questions, timeLimit, timeRemaining)
- // 2. getQuestion()
-
- // 3. moveToNextQuestion()
+ /* ============================================================
+ Día 1 – 17/11/2025
+ CONSTRUCTOR
+ - Recibe: array de preguntas, tiempo total y tiempo restante
+ - Inicializa contadores y el índice de preguntas
+ ============================================================ */
+ constructor(questions, timeLimit, timeRemaining) {
+ this.questions = questions; // Lista de preguntas
+ this.timeLimit = timeLimit; // Tiempo total del quiz
+ this.timeRemaining = timeRemaining; // Tiempo restante
+ this.correctAnswers = 0; // Contador de aciertos
+ this.currentQuestionIndex = 0; // Índice de la pregunta actual
+ }
- // 4. shuffleQuestions()
- // 5. checkAnswer(answer)
+ /* ============================================================
+ Día 1
+ getQuestion()
+ - Devuelve la pregunta actual según el índice
+ ============================================================ */
+ getQuestion() {
+ return this.questions[this.currentQuestionIndex];
+ }
+
+
+ /* ============================================================
+ Día 1
+ moveToNextQuestion()
+ - Avanza el índice en +1 para pasar a la siguiente pregunta
+ ============================================================ */
+ moveToNextQuestion() {
+ this.currentQuestionIndex++;
+ }
+
+
+ /* ============================================================
+ Día 1
+ shuffleQuestions()
+ - Baraja las preguntas usando Fisher–Yates Shuffle
+ ============================================================ */
+ shuffleQuestions() {
+ let array = this.questions;
+ let randomIndex;
+
+ for (let i = array.length - 1; i > 0; i--) {
+ randomIndex = Math.floor(Math.random() * (i + 1));
+
+ // Intercambia posiciones
+ [array[i], array[randomIndex]] = [array[randomIndex], array[i]];
+ }
+ }
+
+
+ /* ============================================================
+ Día 1
+ checkAnswer(answer)
+ - Comprueba si la respuesta del usuario coincide
+ con la respuesta correcta de la pregunta actual
+ - Si es correcta, suma +1 al contador
+ ============================================================ */
+ checkAnswer(answer) {
+ const currentQuestion = this.getQuestion();
+
+ if (currentQuestion.answer === answer) {
+ this.correctAnswers++;
+ }
+ }
+
+
+ /* ============================================================
+ Día 1
+ hasEnded()
+ - Retorna true si ya se han respondido todas las preguntas
+ ============================================================ */
+ hasEnded() {
+ return this.currentQuestionIndex === this.questions.length;
+ }
+
+
+ /* ============================================================
+ Día 2 – 18/11/2025
+ filterQuestionsByDifficulty(difficulty)
+ - Filtra preguntas por nivel 1, 2 o 3
+ - Reemplaza el array questions con solo las preguntas filtradas
+ - Reinicia el índice a 0
+ ============================================================ */
+ filterQuestionsByDifficulty(difficulty) {
+
+ // Validación
+ if (typeof difficulty !== "number" || difficulty < 1 || difficulty > 3) {
+ return; // No modifica nada si el valor no es válido
+ }
+
+ // Filtra preguntas que coinciden con el nivel elegido
+ this.questions = this.questions.filter(question => {
+ return question.difficulty === difficulty;
+ });
+
+ // Reiniciar el índice después de filtrar
+ this.currentQuestionIndex = 0;
+ }
+
+
+ /* ============================================================
+ Día 2 – 18/11/2025
+ averageDifficulty()
+ - Calcula el promedio de dificultad de las preguntas
+ - Usa reduce para sumar todas y divide por la longitud
+ ============================================================ */
+ averageDifficulty() {
+
+ // Evitar división entre cero
+ if (this.questions.length === 0) return 0;
+
+ const totalDifficulty = this.questions.reduce((accumulator, question) => {
+ return accumulator + question.difficulty;
+ }, 0);
+
+ // Promedio
+ return totalDifficulty / this.questions.length;
+ }
+
+}// ← Fin de la clase Quiz
- // 6. hasEnded()
-}
\ No newline at end of file