Gain insights into advanced React patterns with hooks. Learn about optimizing components with hooks over traditional methods like render props or higher-order components for better efficiency.

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

### Memoizing The Callback
`toggle` acts as a callback function and it’ll eventually be invoked by `Expandable.Header`. Let’s prevent any future performance issues by memoizing the callback. 

# Memoizing The Callback
`toggle` acts as a callback function and it’ll eventually be invoked by `Expandable.Header`. Let’s prevent any future performance issues by memoizing the callback. 

import React, { createContext, useState, useCallback } from 'react'

const ExpandableContext = createContext()
const { Provider } = ExpandableContext

const Expandable = ({children}) => {
  const [expanded, setExpanded] = useState(false)
  // look here 👇
  const toggle = useCallback(
    () => setExpanded(prevExpanded => !prevExpanded),
    []
  )
  return <Provider>{children}</Provider>
}

export default Expandable


Not sure how `useCallback` works? Have a look at this [cheatsheet](https://react-hooks-cheatsheet.com/usecallback).

Once we have both `expanded` and `toggle` created, we can expose these via the `Provider`’s value prop. 

Introduction

Compound Components Pattern

Control Props

Props Collection

Prop Getters

State Initializer

State Reducer

Create a Trello Clone with React

Conclusion

Preventing Unnecessary Renders

Memoizing The Callback #