In the previous chapters, you learned how to display data, manage user inputs, and make HTTP requests and routes. You can consider these skills as basic building blocks. But before you can start writing frameworkless code, you need to know how to manage the data (or the state) that links all these elements together. In front-end applications or, more generally, all kinds of client applications (web, desktop, and mobile), the problem of effectively managing data is called state management.
State ...
