- Dev Build
- Local Server
- HMR = Hot Module Replacement
- File-watching Algorithm [written in C++]
- Caching [to generate faster builds]
- Image Optimization
- Minification
- Bundling
- Compress
- Consistent Hashing
- Code Splitting
- Differential Bundling [to provide support for older browsers]
- Diagnostics
- Error Handling
- Tree Shaking [to remove unused code]
- Different dev and prod bundles