I have put together a comprehensive visual cheatsheet to help you master all the major concepts and features of the React library in 2021.
I created this cheatsheet to help you optimize your React learning in the shortest amount of time.
It includes tons of practical examples to illustrate every feature of the library and how it works using patterns you can apply within your own projects.
Along with each code snippet, I have added many helpful comments. If you read these comments, you’ll see what each line of code does, how different concepts relate to one another, and gain a more complete understanding of how React can be used.
Note that the keywords that are particularly useful for you to know as a React developer are highlighted in bold, so look out for those.
Want Your Own Copy of the Cheatsheet?
Download the cheatsheet in PDF format here (it takes 5 seconds).
Here are some quick wins from grabbing the downloadable version:
- ✓ Quick reference guide to review however and whenever
- ✓ Tons of copyable code snippets for easy reuse
- ✓ Read this massive guide wherever suits you best. On the train, at your desk, standing in line… anywhere.
There’s a ton of great stuff to cover, so let’s get started.
Want to run any of the code snippets below? Create a new React application to try out any of these examples using the (free) online tool CodeSandbox. You can do so instantly by visiting react.new.
Table of Contents
React Fundamentals
- JSX Elements
- Components and Props
- Lists and Keys
- Event Listeners and Handling Events
Essential React Hooks
- State and useState
- Side Effects and useEffect
- Refs and useRef
Hooks and Performance
- Preventing Re-renders and React.memo
- Callback functions and useCallback
- Memoization and useMemo
Advanced React Hooks
- Context and useContext
- Reducers and useReducer
- Writing custom hooks
- Rules of hooks
#react #javascript #web-development #programming #developer
