angular.js

Two-way data binding seamlessly syncs UI and model data, eliminating manual DOM updates and reducing boilerplate code, as highlighted in the README's emphasis on reactive programming.

Extends HTML syntax with custom directives for creating reusable components, allowing developers to define app behavior directly in templates, making code more readable and maintainable.

Promotes modularity and testability by automatically managing dependencies, enabling easy unit testing with mock objects, as stated in the README's focus on test-ready architecture.

Supports deep linking and navigation for single-page apps using hashbang or HTML5 pushState, simplifying app structure without page reloads.