The primary concept behind Redux is that the complete state of an application is stored in a single central location. Moreover, each application component can have direct access to the state of the application without it being mandatory to use callback functions or send props down to child components or send data back up to a parent component.
One of the best things about Redux is that it facilitates complex situations such as wherein some or all of the same data is to be shared by multiple components that are not closely related to one another. Redux facilitates it by offering a central store that can store or hold data from anywhere in the location.
In addition to these advantages, Redux also permits individual components to stay “connected” to the store and extract only the required pieces of data while some data may still be in the local state of the components. This eventually means that the data no longer has to be passed down through multiple component levels that make the code simpler. Moreover, this also improves rendering performance as fewer components are involved.