Apr 16

・2 min read

There are many essential concepts and lessons that React developers need to know that simply aren't covered in most tutorials.

I have handpicked the topics I believe are some of the most important for you to know, but few articles have dedicated the time to cover in detail.

Let's take a look at five key React lessons worth knowing which you might not find elsewhere.

1. How React state is actually updated
As a React developer, you know that state can be created and updated with the useState and useReducer hooks.Read More

2. It's better to use multiple effects instead of one
When performing a side effect, most React developers will useEffect just once and attempt to perform multiple side effects within the same effect function.Read More

3. Don't optimize functions that update state (useState, useReducer)
A common task whenever we pass down a callback function from a parent component to a child component is to prevent it from being recreated, unless its arguments have changed.Read More

4. The useRef hook can preserve state across renders
As React developers, it's very helpful sometimes to be able to reference a given React element with the help of a ref. We create refs in React with the help of the useRef hook.Read More

5. How to prevent your React app from crashing
One of the most important lessons for React developers to know, especially if they haven't pushed a React application to the web, is what to do with uncaught errors.Read More

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