Comment by zlumer

React is just an abstraction of a State -> View function.

While not universally applicable, it's very convenient during development to focus on State without thinking about View, or focus on View without thinking about State.

The concept itself has nothing to do with the actual renderer: HTML, TUI, or whatever. You can render your state to a text file if you want to.

So the flickering is caused either by a faulty renderer, or by using a render target (terminal) that is incompatible with the UI behavior (frequent partial re-renders, outputting a lot of text etc.)