Both React JS and Angular offer component-based architectures for building scalable web applications. React JS focuses on UI development and allows developers to choose the tools and libraries they prefer, while Angular is a complete framework providing built-in solutions for various tasks in web development. Here’s a comparison of React JS and Angular features:
| Feature | React JS | Angular |
|---|---|---|
| Type | JavaScript library | Full-fledged framework |
| Language | JavaScript with optional JSX syntax | TypeScript (recommended), JavaScript |
| Component Architecture | Yes | Yes |
| Data Binding | One-way data binding | Two-way data binding |
| DOM Manipulation | Virtual DOM | Real DOM (with change detection optimization) |
| Dependency Injection | Not built-in, requires additional libraries | Built-in |
| Routing | Requires separate library (e.g., React Router) | Built-in (Angular Router) |
| State Management | Requires separate library (e.g., Redux, MobX) | Built-in (services, RxJS) |
| Forms | Requires additional libraries or manual handling | Built-in (Template-driven and Reactive forms) |
| Directives | Not available (uses components instead) | Built-in (structural and attribute directives) |
| CLI | Requires separate tool (e.g., Create React App) | Built-in (Angular CLI) |
| Mobile App Development | Requires separate technology (React Native) | Requires separate technology (Ionic, NativeScript) |
| Ecosystem | Flexible, allows choosing libraries as needed | Opinionated, comes with a set of prescribed tools |
| Community | Large and well-established | Large and well-established |
| Performance | Fast, with virtual DOM | Fast, with change detection and ahead-of-time (AOT) compilation |
The choice between React JS and Angular depends on your specific project requirements, team experience, and personal preferences. Both are popular choices for building modern web applications and have large, active communities.