Simplify your code. Start with the least complicated implementation and work your way toward more complex solutions only when the problem demands it.
The Grep Test: If any code declares or makes use of a function, class, module, or variable that cannot be located by grepping for its full identifying token, it fails the Grep Test.
This article will be structured in 3 parts, first we will have a look at Errors in general. After that we will focus on the backend (Node.js + Express.js) and finally we’ll see how to deal with Errors in React.js. I chose those frameworks, because they are by far the most popular at the moment, but you should be able to apply your new found knowledge to other frameworks easily!
Effects like this can be quite a lot of trouble, but the beauty of React is that it encourages the creation of reusable effects. After following this tutorial, you'll wind up with a component you can easily drop into any future project!
The useReducer hook provides a flexible solution to complex state. The useState hook we all know and love is actually built on top of useReducer. If you don’t understand how a reducer function works you’ll likely always reach for useState. This isn’t the worst thing in the world, but I hope after reading this article you’ll understand exactly how to implement useReducer and have a decent idea when to use useReducer.
ReactJS Girls Conf Recap & Videos