With the release of hooks, certain React patterns have gone out of style. Hooks are likely the way we’ll be writing React components for the next couple of years, so they are quite important. React patterns can still be used, but in most cases, developers will be better off using hooks. For example, they should choose hooks over render props or higher-order components. There may be specific cases where the aforementioned could still be used, but most of the time, hooks are better. That being said, this course will teach you some of the more advanced React patterns implemented with hooks.

Advanced React Patterns With Hooks

## Using a `ref` Object
As discussed in the last lesson, I prefer to provide the `resetDep` via a `ref` object instead of creating a state variable. This way I’m sure to introduce only important variables as actual state variables. 

The solution is similar, it’s only an internal change within our custom hook,  `useExpanded`. How the user consumes `resetDep` remains the same. 

So, here’s the implementation with a `ref` object: 

# Using a `ref` Object
As discussed in the last lesson, I prefer to provide the `resetDep` via a `ref` object instead of creating a state variable. This way I’m sure to introduce only important variables as actual state variables. 

The solution is similar, it’s only an internal change within our custom hook,  `useExpanded`. How the user consumes `resetDep` remains the same. 

So, here’s the implementation with a `ref` object: 

Let's clean up the useExpanded.js file by removing extra state variables

Introduction

Compound Components Pattern

Control Props

Props Collection

Prop Getters

State Initializer

State Reducer

Conclusion

Getting Rid of Extra State Variables

Using a `ref` Object