One of the best things to have if you are working with React+Redux are the Redux Developer Tools (or DevTools), which provide a console that lets you look into actions and, states, and even provide a "time machine" mode that allows you to go back and forth in time, so you can carefully check if everything's as it should be. In this recipe, let's see how to use this very powerful tool to help debug our code.
If you want to see Dan Abramov's demonstration of this tool, check out his talk at React Europe in 2015 at https://www.youtube.com/watch?v=xsSnOQynTHs.