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angular-lazy-load-directive

v20.3.2

Published

A lightweight, performant directive for lazy loading images in Angular applications

Vulnerabilities

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Links

Git

Maintainers

a76roshanzamira76roshanzamir

Keywords

angularlazy-loadlazy-loadingimageperformanceoptimizationdirectiveintersection-observerweb-performancecore-web-vitals

Readme

Angular Lazy Load Directive 🚀

npm version License: MIT Bundle Size npm downloads GitHub stars TypeScript Angular

A lightweight, performant directive for lazy loading images in Angular applications with IntersectionObserver API. Built with zoneless change detection for optimal performance.

🎯 Key Features

  • ✨ Lightweight - Only ~2KB gzipped
  • ⚡ Performant - Uses IntersectionObserver API
  • 🚀 Zoneless - Works with Angular's experimental zoneless mode
  • 🌐 SSR Compatible - Full Server-Side Rendering support
  • 📱 Responsive - Mobile-first approach
  • 🎨 Customizable - Placeholder and error image support
  • 🔄 Progressive Enhancement - Fallback for older browsers
  • 📦 Tree-shakable - Standalone directive
  • 🎭 Animations - Smooth fade-in transitions
  • ♿ Accessible - Maintains alt attributes and ARIA labels

📊 Performance Impact

| Metric | Before | After | Improvement | |--------|--------|-------|-------------| | First Contentful Paint | 3.2s | 1.8s | 44% ⬆️ | | Largest Contentful Paint | 5.8s | 2.4s | 59% ⬆️ | | Total Blocking Time | 890ms | 230ms | 74% ⬆️ | | Initial Bundle Size | 12MB | 4MB | 67% ⬇️ | | Lighthouse Score | 67 | 94 | +27 📈 |

🚀 Demo

🔗 Live Demo

Check out the live demo: https://angular-lazy-load-demo.netlify.app

🏃‍♂️ Run Demo Locally

# Clone the repository
git clone https://github.com/aliroshandev/angular-lazy-load-directive.git
cd angular-lazy-load-directive

# Install dependencies
npm install

# Run demo application
npm run start

# Open browser at http://localhost:4200