In this recipe, we will see an example of how to take advanced of this feature and analyze how the state of your application has changed over the time that was running on the browser. First, create a new package.json file with the following content:

{ 
    "dependencies": { 
        "express": "4.16.3", 
        "redux": "4.0.0" 
    } 
} 

Then, install the dependencies by opening a Terminal and running:

npm install 

Make sure to have installed the Redux DevTools Extension in your web browser.