Two-Way Data Binding in AngularJS is a powerful feature that establishes a bidirectional
connection between the data model and the user interface, allowing changes in either the model
or the view to instantly reflect in the other, simplifying the development of dynamic and
responsive web applications.
Directives are markers on HTML elements that tell AngularJS to attach specific behavior or to
transform the DOM (Document Object Model). Examples include ng-model, ng-bind, and ng-repeat.
Developers can also create custom directives to extend the functionality of AngularJS.
Dependency Injection (DI) in AngularJS is a design pattern that enables components to receive
their dependencies rather than creating them internally. This promotes modularity, reusability,
and testability by allowing external services or objects to be injected into components,and
Model-View-Controller Architecture in AngularJS divides an application into three interconnected
components: Model (data), View (UI), and Controller (logic). It separates concerns and
scalability by facilitating a structured and organized approach to web application development.
Routing in AngularJS is the mechanism for managing different views or templates within a
single-page application (SPA). It enables navigation by mapping URLs to specific views, allowing
dynamic content loading without full page refresh, enhancing user experience and application
Testing in AngularJS involves verifying the correctness of your application's code through unit
testing, integration testing, and end-to-end testing. AngularJS provides tools like Jasmine and
Karma to write and run tests, ensuring application reliability, stability, and maintainability.