Stopwatch Timer
Build a fully functional Stopwatch Timer from scratch using pure HTML, CSS, and JavaScript. This project introduces core web fundamentals like DOM manipulation, intervals, and dynamic styling — wrapped in a premium glassmorphism UI with animated backgrounds, gradient text, and smooth micro-animations.
📚Scroll down to see free videos & courses ↓What You Will Build
A sleek stopwatch timer with start, pause, reset, and lap recording functionality. The UI features an animated dark background with floating orbs, a real-time digital display using the Orbitron font, a 2×2 control grid with glowing buttons, and a scrollable lap list that tracks both split and total times. Keyboard shortcuts (Space, R, L) are also supported.
Concepts You'll Learn
- DOM manipulation with getElementById and classList
- setInterval and clearInterval for real-time updates
- Date.now() for precise time tracking
- State management with plain JavaScript variables
- Dynamic button enable/disable and text updates
- CSS animations — shimmer, pulse, fadeSlideIn, and orbFloat
- Glassmorphism design with backdrop-filter and rgba
- CSS Grid for button layout and lap table alignment
- Responsive design with media queries
- Keyboard event handling with keydown listeners
Tech Stack
Study Resources
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