Q1. What is Redux?
Redux is a predictable state container for JavaScript applications, most commonly used with React. It helps you manage and centralize your application’s state in a single...
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Q2. What are the core principles of Redux?
Redux follows three fundamental principles: 1. **Single source of truth:** The state of your whole application is stored in an object tree within a single store. The sing...
Q3. What are the downsides of Redux compared to Flux?
While Redux offers a powerful and predictable state management solution, it comes with a few trade-offs when compared to Flux. These include: 1. **Immutability is essenti...
Q4. How to access Redux store outside a component?
You just need to export the store from the module where it created with `createStore()`. Also, it shouldn't pollute the global window object. ```javascript store = create...
Q5. Are there any similarities between Redux and RxJS?
These libraries are very different for very different purposes, but there are some vague similarities. Redux is a tool for managing state throughout the application. It i...
Q6. How to reset state in Redux?
You need to write a _root reducer_ in your application which delegate handling the action to the reducer generated by `combineReducers()`. For example, let us take `rootR...
Q7. What is the difference between React context and React Redux?
You can use **Context** in your application directly and is going to be great for passing down data to deeply nested components which what it was designed for. Whereas **...
Q8. Why are Redux state functions called reducers?
Reducers always return the accumulation of the state (based on all previous and current actions). Therefore, they act as a reducer of state. Each time a Redux reducer is ...
Q9. How to make AJAX request in Redux?
You can use `redux-thunk` middleware which allows you to define async actions. Let's take an example of fetching specific account as an AJAX call using _fetch API_: ```ja...
Q10. Should I keep all component's state in Redux store?
**No.** In professional state architecture, keeping 100% of application state in a global Redux store is an anti-pattern. You should carefully separate **global server/cl...