Why is Angular called a framework, not a library?
Angular is called a framework, not a library, because it defines the architecture of the entire application and takes over managing its lifecycle. It is not simply added to a project - it builds the project around itself.
Here's how a framework differs from a library:
| Characteristic | Framework (e.g., Angular) | Library (e.g., React) |
|---|---|---|
| Who controls the flow | The framework controls you | You control the library |
| Architecture | Set from the start | You decide yourself |
| Lifecycle | Controlled by the framework | You call methods manually |
| Scope | The whole project structure | Individual parts of the interface |
Why Angular is a framework:
- It dictates the application's structure: components, modules, services, routes, and so on - all subject to its rules.
- It manages the components' lifecycle itself, along with event handling, data binding, and dependencies.
- It has everything "inside": router, HTTP client, forms, validation, DI, testing - nothing to look for separately.
- You don't need to decide how to wire everything together - Angular has already decided for you.
In one sentence
Angular is a framework because it controls the entire development process, sets the architecture, and manages the application, rather than simply helping with a single task.
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