UIRouter

ui-router is a popular routing framework for single-page applications (SPAs) built with JavaScript frameworks like AngularJS and Angular. It provides a more advanced and flexible approach to managing application states and transitions compared to traditional URL-based routing.

The core concept of ui-router is state management. Instead of solely relying on URLs, ui-router defines application states that can have their own views, controllers, and parameters. These states can be nested, allowing for complex UI structures and data binding. Transitions between states are managed by ui-router, which handles loading associated components and updating the URL accordingly.

Key features of ui-router include state nesting, which enables hierarchical UIs and the ability to share data between parent and child states. It also supports multiple named views within a single state, allowing different parts of the page to be updated independently. ui-router offers powerful transition hooks that allow developers to intercept and modify state transitions, enabling functionalities like authentication checks, data fetching, and scroll management. The framework is highly configurable and extensible, making it suitable for a wide range of application architectures.