What are the best practices for writing reducers in Redux?

What are the best practices for writing reducers in Redux?

When writing reducers in Redux, it's important to keep them pure, avoid side effects, and use immutable state updates.

Can you explain what you mean by pure functions?

Pure functions are functions that return the same output for the same input and do not cause any side effects.

How can I ensure my reducer is immutable?

You can use methods like spread operator or libraries like Immer to help maintain immutability in your state updates.

What about handling actions in reducers?

You should handle actions using a switch statement or by using action creators to keep your code organized.