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Quiz App with Timer & High Scores
An interactive Quiz App with multiple categories, difficulty levels, timer modes, hint system, high score tracking, and answer review functionality.
⏱️5–6 hours
📅Added: Jan 17, 2026
About This Project
This Quiz App is an intermediate-level JavaScript project that demonstrates
state management, timer implementation, and localStorage persistence.
Users can select from 6 categories (General, Science, History, Geography, Sports, Movies),
choose difficulty levels, and play with different timer modes.
Features include hint system, progress tracking, detailed results with percentage breakdown,
answer review, high score leaderboard, and social sharing - making it a complete portfolio project.
Key Features
- ✓6 quiz categories with 100+ questions
- ✓3 difficulty levels (Easy, Medium, Hard)
- ✓3 timer modes (Per Quiz, Per Question, No Timer)
- ✓Hint system with score penalty
- ✓Progress bar and score tracking
- ✓Detailed results with breakdown
- ✓Answer review functionality
- ✓High score leaderboard with localStorage
- ✓Share results feature
- ✓Toast notifications
- ✓Responsive design
What You'll Learn
- 📚Complex state management
- 📚Timer implementation with setInterval
- 📚Question shuffling algorithms
- 📚Score calculation logic
- 📚LocalStorage for high scores
- 📚Dynamic UI rendering
- 📚Modal and screen transitions
- 📚Share API integration
- 📚Data filtering and mapping
Tech Stack
HTML5CSS3Vanilla JavaScript (ES6+)LocalStorage APIWeb Share APIFont Awesome
Tags
#quiz#game#trivia#javascript#intermediate#timer#localstorage#portfolio-project