Quiz

The Quiz component displays an interactive quiz with multiple-choice questions. It supports random question selection, immediate feedback, explanations, and score tracking. Perfect for educational content and knowledge testing.

Basic Usage

import Quiz from '@site/src/components/Quiz';
import quizData from '@site/src/data/quiz-demo.json';

<Quiz quizData={quizData} />

Live Preview:

Cardano Basics Quiz

Test your Cardano knowledge with this short quiz.

What is a "dapp"?

Props

Prop	Type	Default	Description
`quizData`	`object`	required	Quiz data object containing questions and metadata
`questionCount`	`number`	`5`	Number of questions to randomly select from the quiz
`allowRetry`	`boolean`	`true`	Whether users can retry an incorrect answer before moving to the next question
`passingScore`	`number`	`60`	Minimum percentage required to pass (0-100)
`onRecord`	`function`	`null`	`(correct, total) => void`, called once when the quiz finishes. Passing a function switches the component into hub mode, see Hub Mode below
`academyCta`	`object`	`null`	`{href, label, certifiedLabel, ariaLabel}` shown as a follow-up link on the hub mode result screen. Build it with `getAcademyCta(academyKey, quizId)` from `src/data/quiz/academy.js`. `label` (with `ariaLabel` naming the destination) is used for a learning or bronze result, `certifiedLabel` for silver and gold. Ignored outside hub mode

Quiz Data Format

The quiz component expects a JSON file with the following structure:

{
  "title": "Quiz Title",
  "description": "Optional description of the quiz",
  "questions": [
    {
      "id": 1,
      "question": "What is a dapp?",
      "options": [
        "A decentralized application running on a blockchain",
        "A car company",
        "A database error",
        "A food delivery service"
      ],
      "correctAnswer": 0,
      "explanation": "A dapp is a decentralized application..."
    }
  ]
}

Field Descriptions

title (string, optional): Main title displayed above the quiz
description (string, optional): Brief description shown below the title
questions (array, required): Array of question objects
- id (number): Unique identifier for the question
- question (string): The question text
- options (array of strings): 3 to 4 answer choices (displayed as A, B, C, D)
- correctAnswer (number): Index of the correct option, 0-based
- explanation (string, optional): Explanation shown after answering
- sourceUrl (string, optional): Link rendered as "Learn more" under the explanation, opens in a new tab. Required for hub quizzes, see the pipeline for the allowed hosts

Features

Random Question Selection

Automatically selects random questions from the provided data
Control the number of questions with questionCount prop
Each quiz session shows different questions (if pool is large enough)

Interactive Feedback

Visual states: Questions cards change color based on correct/incorrect answers
Immediate feedback: Shows whether answer is correct or incorrect
Explanations: Optional detailed explanations after each answer
Try again: Allows retry on incorrect answers (configurable via allowRetry prop)

Progress Tracking

Progress bar: Visual indicator showing current question position
Score tracking: Calculates final score as percentage
Results screen: Shows final score with pass/fail indication (configurable via passingScore prop)

Answer Randomization

Shuffled options: Answer positions vary for each question to prevent pattern memorization
Shuffled questions: Random question selection from the pool each session

Visual Design

Color-coded states:
- Green: Correct answers
- Red: Incorrect answers
- Purple: Selected (before checking)
- Gray: Unselected
Icons: Checkmark for correct, X for incorrect
Smooth transitions: All state changes are animated

Examples

Basic Quiz (5 Questions)

<Quiz quizData={quizData} questionCount={5} />

Full Quiz (All Questions)

To show all available questions, set questionCount to a high number:

<Quiz quizData={quizData} questionCount={100} />

Quiz Without Retry Option

Disable the retry button for incorrect answers:

<Quiz quizData={quizData} allowRetry={false} />

Cardano Basics Quiz

Test your Cardano knowledge with this short quiz.

What is a "dapp"?

Custom Passing Score

Set a higher passing threshold (e.g., 80%):

<Quiz quizData={quizData} passingScore={80} />

Cardano Basics Quiz

Test your Cardano knowledge with this short quiz.

What is a "dapp"?

Strict Quiz Mode

Combine no retry with a high passing score:

<Quiz quizData={quizData} allowRetry={false} passingScore={80} />

Cardano Basics Quiz

Test your Cardano knowledge with this short quiz.

What is a "dapp"?

Scam Awareness Quiz

Using the scam awareness quiz (10 questions):

import scamQuiz from '@site/src/data/quiz-scams.json';

<Quiz quizData={scamQuiz} questionCount={5} passingScore={80} />

Common Scams Awareness Quiz

Test your knowledge about common scams in the blockchain space and how to protect yourself.

What is one common way the fake tech support scam begins, according to Cardano's own scam-awareness guidance?

Hub Mode

Passing an onRecord function switches Quiz into hub mode. The results screen always shows the segmented green and red progress bar every result screen uses. On top of that, a run scoring 60 percent or higher also gets a rendered result badge image (bronze, silver, or gold), a share button for that badge, and an optional academy call-to-action. A run below 60 percent gets a fourth "learning" state instead: no badge and no share button, but the "Keep learning" tier pill, the score text, the bar, and an encouragement to try again.

import Quiz from '@site/src/components/Quiz';
import useQuizProgress from '@site/src/utils/useQuizProgress';
import { getQuizCatalog } from '@site/src/data/quiz/catalog';
import { getAcademyCta } from '@site/src/data/quiz/academy';

const { record } = useQuizProgress();
const entry = getQuizCatalog()[0];
const quizData = entry.getData();

<Quiz
  quizData={quizData}
  questionCount={quizData.questionCount}
  allowRetry={false}
  onRecord={(correct, total) => record(entry.id, correct, total)}
  academyCta={getAcademyCta(entry.academyKey, entry.id)}
/>

The owner pattern

useQuizProgress reads and writes a single localStorage entry that covers every quiz on the hub. Instantiate it exactly once, in the page or hub component that owns the overall progress state, never inside Quiz itself, which stays unaware of storage or quiz identity entirely. The QuizHub component is the reference implementation: it holds the one useQuizProgress instance and hands each quiz card its own scoped callback:

onRecord={(correct, total) => record(entry.id, correct, total)}

Quiz only ever reports a result up through whatever callback its owner gave it. This keeps the engine reusable and testable without pulling storage concerns into it.

Why hub quizzes disable retry

Hub quizzes pass allowRetry={false}. The allowRetry prop lets a user retry a single question immediately after answering it wrong, before moving on, within the same run. If that were allowed in hub mode, a user could keep retrying every missed question until they got it right and always walk away with a perfect score, which would make the gold tier meaningless. Classic (non-hub) usage keeps allowRetry at its default of true, since there is no tier or share step to protect there.

Classic usage is unchanged

Outside hub mode, Quiz behaves exactly as it always has: onRecord and academyCta default to null, no tier badge or share button appears, and restarting the quiz reuses the same sampled question set rather than drawing a new one. Hub mode resamples on restart instead, so a repeat attempt at gold pulls a fresh set of questions from the pool.

Creating Quiz Data

Step 1: Create JSON File

Create a new JSON file in /src/data/ (e.g., quiz-cardano-advanced.json):

{
  "title": "Advanced Cardano Quiz",
  "description": "Test your deeper knowledge of Cardano",
  "questions": [
    {
      "id": 1,
      "question": "Your question here?",
      "options": [
        "Option A",
        "Option B",
        "Option C",
        "Option D"
      ],
      "correctAnswer": 0,
      "explanation": "Detailed explanation of the correct answer."
    }
  ]
}

Step 2: Import and Use

import Quiz from '@site/src/components/Quiz';
import advancedQuiz from '@site/src/data/quiz-cardano-advanced.json';

<Quiz quizData={advancedQuiz} questionCount={8} />

Hub Quiz Data Pipeline

Quizzes shown on the /quiz hub go through a separate, stricter pipeline than the freeform JSON files above. It does not apply to quiz files used directly with the classic <Quiz quizData={...} /> pattern (quiz-demo.json, quiz-scams.json), those stay hand-authored JSON with no extra tooling.

1. Add a JSON source

Create a file in src/data/quiz/ (for example src/data/quiz/security.json):

{
  "id": "security",
  "title": "Wallet Security",
  "description": "Test how well you can spot a scam.",
  "difficulty": "beginner",
  "questionCount": 5,
  "questions": [
    {
      "id": "security-1",
      "question": "What should you never share to keep your wallet safe?",
      "options": [
        "Your seed phrase",
        "Your wallet address",
        "Your favorite dapp",
        "Your ada balance"
      ],
      "correctAnswer": 0,
      "explanation": "Your seed phrase gives full control over your wallet funds. No legitimate service will ever ask for it.",
      "sourceUrl": "https://cardano.org/faqs"
    }
  ]
}

Then register the new quiz in src/data/quiz/catalog.js so it shows up on the hub.

2. Generate the translate() module

yarn build-quiz

This runs scripts/generate-quiz-modules.js, which reads every src/data/quiz/*.json file and writes a matching module to src/data/quiz/generated/<id>.js with literal translate() calls around each string (quiz.<id>.title, quiz.<id>.<questionId>.question, quiz.<id>.<questionId>.option0, and so on). Literal calls are required so that yarn write-translations can extract every string. Generated files are committed to the repository, always edit the JSON source and re-run this command, never edit generated/*.js by hand.

3. Validate

yarn test:quiz-data

scripts/check-quiz.js enforces, per quiz file:

id is a lowercase slug and matches the filename
difficulty is one of beginner, intermediate, advanced
the question pool is at least twice questionCount, so retries and hub replays draw a fresh sample from the pool, and repeat runs usually differ
each question has 3 to 4 options and a correctAnswer index in range
explanation is at least 30 characters long
sourceUrl is present and its hostname is on an allowlist (cardano.org, docs.cardano.org, developers.cardano.org, cips.cardano.org, roadmap.cardano.org, cardanofoundation.org, a leading www. is ignored), so every explanation links back only to trusted, first-party sources
no typographic dashes appear in any question, option, or explanation text
the generated module in src/data/quiz/generated/ matches its JSON source (run yarn build-quiz again if it has drifted)

yarn build-quiz also runs automatically as part of yarn start and yarn build. yarn test:quiz-data runs as part of yarn test, where its sync check fails the build if the generated module is out of date rather than regenerating it, so yarn build-quiz still needs to be run and committed by hand after a source change.

Integration Example

import Quiz from '@site/src/components/Quiz';
import quizData from '@site/src/data/quiz-demo.json';

<Quiz quizData={quizData} questionCount={5} />

Internationalization (i18n)

All UI strings in the Quiz component (Correct!, Incorrect, Check answer, Try again, Next question, Finish quiz, Explanation, score text, etc.) use translate() from @docusaurus/Translate and can be translated via i18n/<locale>/code.json under the quiz.ui.* namespace.

Quiz content (questions, options, explanations) comes from the JSON data file. To support multiple languages, create a locale-specific copy (e.g., quiz-scams.de.json) and select the correct file in the parent page based on currentLocale:

import quizDataEn from '@site/src/data/quiz-example.json';
import quizDataDe from '@site/src/data/quiz-example.de.json';
import useDocusaurusContext from '@docusaurus/useDocusaurusContext';

const {i18n: {currentLocale}} = useDocusaurusContext();
const quizData = currentLocale === 'de' ? quizDataDe : quizDataEn;

<Quiz quizData={quizData} />

Available Translation Keys

Key	English Default
`quiz.ui.noQuestions`	No quiz questions available.
`quiz.ui.greatJob`	Great job!
`quiz.ui.keepLearning`	Keep learning!
`quiz.ui.scoreText`	You scored {score} out of {totalQuestions}
`quiz.ui.tryAgain`	Try again
`quiz.ui.correct`	Correct!
`quiz.ui.incorrect`	Incorrect
`quiz.ui.explanation`	Explanation
`quiz.ui.learnMore`	Learn more
`quiz.ui.checkAnswer`	Check answer
`quiz.ui.nextQuestion`	Next question
`quiz.ui.finishQuiz`	Finish quiz

Hub mode adds a further set of keys, for the tier badge, and for the practice-your-mistakes loop on the results screen:

Key	English Default
`quiz.tier.learning`	Keep learning
`quiz.tier.bronze`	Bronze
`quiz.tier.silver`	Silver
`quiz.tier.gold`	Gold
`quiz.ui.practiceCleared`	All cleared!
`quiz.ui.practiceKeepGoing`	Almost there!
`quiz.ui.practiceRemaining`	Review remaining mistakes
`quiz.ui.practiceMistakes`	Review your mistakes
`quiz.ui.backToQuiz`	Take the full quiz again
`quiz.ui.practiceIntro`	Practice round: these are the questions you missed. This round does not change your score.
`quiz.ui.badgeAlt`	{tierLabel} badge for {quizTitle}: {score} out of {totalQuestions} correct

The academy call-to-action built by getAcademyCta() in src/data/quiz/academy.js uses these keys:

Key	English Default
`quiz.academy.cta`	Go deeper
`quiz.academy.ctaCertified`	Get certified at the Cardano Academy
`quiz.academy.ctaAriaLabel`	Go deeper at the Cardano Academy

The QuizShare component shown on the hub results screen carries its own keys, documented on its page.

Quiz Card - Call-to-action card that launches a Quiz in a modal
Quiz Share - Result sharing shown on the hub mode results screen
FAQ Component - For Q&A content without scoring
Tutorial pages - Educational content that can be reinforced with quizzes

Available Quiz Files

Classic, freeform quiz files, used directly with quizData:

quiz-demo.json - Cardano fundamentals (5 questions)
quiz-scams.json - Common scam awareness (10 questions)
quiz-scams.de.json - Common scam awareness, German (10 questions)

You can create additional quiz files for different topics.

Hub quizzes live separately, as sources in src/data/quiz/*.json that go through the pipeline above and are wired into src/data/quiz/catalog.js.

Quiz​

Basic Usage​

Cardano Basics Quiz

What is a "dapp"?

Props​

Quiz Data Format​

Field Descriptions​

Features​

Random Question Selection​

Interactive Feedback​

Progress Tracking​

Answer Randomization​

Visual Design​

Examples​

Basic Quiz (5 Questions)​

Full Quiz (All Questions)​

Quiz Without Retry Option​

Cardano Basics Quiz

What is a "dapp"?

Custom Passing Score​

Cardano Basics Quiz

What is a "dapp"?

Strict Quiz Mode​

Cardano Basics Quiz

What is a "dapp"?

Scam Awareness Quiz​

Common Scams Awareness Quiz

What is one common way the fake tech support scam begins, according to Cardano's own scam-awareness guidance?

Hub Mode​

The owner pattern​

Why hub quizzes disable retry​

Classic usage is unchanged​

Creating Quiz Data​

Step 1: Create JSON File​

Step 2: Import and Use​

Hub Quiz Data Pipeline​

1. Add a JSON source​

2. Generate the translate() module​

3. Validate​

Integration Example​

Internationalization (i18n)​

Available Translation Keys​

Related Components​

Available Quiz Files​

Quiz

Basic Usage

Props

Quiz Data Format

Field Descriptions

Features

Random Question Selection

Interactive Feedback

Progress Tracking

Answer Randomization

Visual Design

Examples

Basic Quiz (5 Questions)

Full Quiz (All Questions)

Quiz Without Retry Option

Custom Passing Score

Strict Quiz Mode

Scam Awareness Quiz

Hub Mode

The owner pattern

Why hub quizzes disable retry

Classic usage is unchanged

Creating Quiz Data

Step 1: Create JSON File

Step 2: Import and Use

Hub Quiz Data Pipeline

1. Add a JSON source

2. Generate the translate() module

3. Validate

Integration Example

Internationalization (i18n)

Available Translation Keys

Related Components

Available Quiz Files