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Before learning Redux, you need to know some of the JavaScript methods that are heavily used when working with Redux.

This is because these methods do not change the original array but they return a new modified array which is very important to achieve immutability.

You also need to know how to use rest and spread operator and how to work with arrow functions.

So let's understand these concepts which will help you to better understand Redux.

You can skip this section If you're already aware of these concepts.

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