- Dev Build
- Local server
- HMR = Hot Module Replacment
- File Watching Algorithm - written in c++
- Caching - Faster Builds
- Image Optimization
- Minification
- Bundling
- Compress
- Consistent Hashing
- Code Splitting
- Differential Bundling - support older browsers
- Diagnostic
- Error Handling
- Https
- Tree Shaking - remove unused code
- Different dev and production bundles
"Remove-Item -Recurse -Force .parcel-cache"