redux-saga vs reselect: What are the differences?

# Introduction
This markdown will highlight the key differences between redux-saga and reselect in the context of web development.

1. **Architecture**: Redux-saga is a middleware library for Redux that allows to handle side effects, like asynchronous data fetching or API calls, while reselect is a library for creating memoized, composable selector functions. Redux-saga focuses on handling side effects, while reselect focuses on optimizing the rendering performance of React components.

2. **Purpose**: Redux-saga is used for managing complex asynchronous logic in a React-Redux application, providing better control flow and testing capabilities, while reselect is used for optimizing the performance of React components by memoizing the results of expensive computations. Redux-saga focuses on handling asynchronous operations, while reselect focuses on optimizing rendering performance.

3. **Usage**: Redux-saga is typically used to separate side effects from the rest of the application's logic, making it easier to test and debug asynchronous behavior, while reselect is used to compute derived state in a Redux store, improving the performance of React components by avoiding unnecessary re-renders. Redux-saga is more concerned with managing side effects, while reselect is focused on optimizing performance.

4. **Complexity**: Redux-saga is more complex to set up and understand due to its handling of asynchronous operations and managing of side effects through generator functions, while reselect is simpler and easier to use as it focuses on memoizing selector functions to optimize performance without introducing additional complexity. Redux-saga introduces more complexity with its handling of asynchronous logic, while reselect focuses on simplicity and performance optimization.

5. **Dependencies**: Redux-saga is a separate middleware library that needs to be added to a Redux application, adding an extra layer of dependency, while reselect is a standalone library that can be easily integrated into a project without additional dependencies. Redux-saga requires adding and configuring middleware, whereas reselect can be used independently with minimal setup.

In Summary, redux-saga focuses on managing asynchronous logic and side effects in Redux applications, while reselect is used for optimizing the performance of React components by memoizing selector functions.