<ul data-eligibleForWebStory="true">JavaScript state management typically involves frameworks like React, Redux, or Vuex.A developer built a complex application state management system in raw JavaScript for a dashboard widget system.The article discusses creating a global store in JavaScript to hold and mutate state.Components are created to listen to state changes and update the DOM accordingly.State is expanded to multiple keys, allowing components to subscribe to specific changes.Updates are batched to improve performance.Persistence middleware is added to maintain state between reloads.A time-travel feature for undo/redo functionality is implemented.An action dispatcher pattern similar to Redux is utilized.The project demonstrates that vanilla JavaScript can handle complex state management effectively with structure and discipline.This approach doesn't replace React or Redux but showcases the capabilities of JavaScript for state management.Building such architectures in environments without frameworks or to enhance JS skills is valuable.