Vue.js Track Detail
What are the key differences between Vue 2 and Vue 3?
| Feature | Vue 2 | Vue 3 |
|---|---|---|
| API Style | Options API | Composition API + Options API |
| Reactivity System | Object.defineProperty() | Proxy-based (faster & more reliable) |
| Performance | Moderate | Improved (~2x faster in some cases) |
| Tree-shaking | Limited | Fully tree-shakable |
| TypeScript Support | Partial | Built-in and first-class support |
| Fragment Support | Not supported | Supported |
| Teleport/Portals | Plugin-based | Native support |
| Suspense | Not available | Native support for async components |