nprogress is a lightweight JavaScript UI component and web progress bar library. It provides a minimalist DOM progress indicator used to track the state of asynchronous operations within a browser document. The library allows for the visualization of loading states through a thin progress bar and spinner. It supports progress state management, enabling the bar to be started, stopped, or marked as complete, with support for incremental progress tracking and percentage-based updates. Users can modify the visual style by overriding default CSS or replacing the markup template. The component als
ComponentKit is a declarative UI framework for building iOS interfaces through composition of small, reusable components. It provides a structured approach to constructing user interfaces where each component is defined as an immutable, pure function of its inputs, enabling predictable rendering and state management. The framework supports both stateless and stateful components, with controllers that can be attached to manage persistent state across component updates. The framework distinguishes itself through its component architecture that emphasizes explicit data flow and compile-time safe