Gain insights into React updates since V16, including new lifecycle methods, context API, and hooks. Discover how to utilize these features for writing better modern React applications.

What’s new with React? New lifecycle methods, context API, hooks, and lots more. While the fundamental principles of React have stayed the same, the way we write React apps has changed with each new release.  

If you learned React a while back, it’s possible that you haven’t been up to date with every new feature/release. It’s also possible to get lost in all the new features. Where exactly do you start? How important are they for your day to day use?

This course is your one-stop reference to most important React updates since V16 was released. We’ll walk through all the major features of modern React so you can stay in sync with the most recent changes while learning to write better software.

Reintroducing React: V16 and Beyond

## Rules for Using Hooks

There are two rules to adhere to while using hooks.

- Only call hooks at the [Top Level](https://reactjs.org/docs/hooks-rules.html#only-call-hooks-at-the-top-level), i.e., not within conditionals, loops, or nested functions.
- Only call hooks from React functions, i.e., functional components and custom hooks.

This ESLint [plugin](https://www.npmjs.com/package/eslint-plugin-react-hooks) is great to ensure you adhere to these rules within your projects. 

# Rules for Using Hooks

There are two rules to adhere to while using hooks.

- Only call hooks at the [Top Level](https://reactjs.org/docs/hooks-rules.html#only-call-hooks-at-the-top-level), i.e., not within conditionals, loops, or nested functions.
- Only call hooks from React functions, i.e., functional components and custom hooks.

This ESLint [plugin](https://www.npmjs.com/package/eslint-plugin-react-hooks) is great to ensure you adhere to these rules within your projects. 

There are two important rules to be followed while writing hooks. Let's have a look!

Introduction

Lifecycle

Context API

ContextType

React.memo

The Profiler

Lazy Loading

Hooks

Conclusion

The Rules of Hooks

Rules for Using Hooks