React useeffect Hook usages you should know.

If you are here, reading the answer of how to use useEffect, you are either beginning with coding using React or you want to begin with it. No matter what the case is, you should find this content useful. Are you ready? Keep reading.

If you’re new to React or just getting started with functional components, you might have heard about the useEffect hook. useEffect is a powerful tool that allows you to perform side effects in your functional components. Here, I will explain how to use useEffect in your React components. Let’s get there step by step.

First, let’s talk about what useEffect is and why it’s important. In React, when you need to perform a side effect (like fetching data from an API or manipulating the DOM), you typically use lifecycle methods like componentDidMount or componentDidUpdate.

However, in functional components, you don’t have access to these lifecycle methods.

This is where useEffect comes in. useEffect is a hook that allows you to perform side effects in functional components. It takes two arguments: a function that contains the code you want to run, and an array of dependencies that specify when the effect should run.

To add, another important thing to note is that the function you pass to useEffect can return a cleanup function. This cleanup function will be called when the component unmounts or when the dependencies of the effect change. This can be useful for cleaning up timers, event listeners, or other resources that you no longer need.

I hope my content helped you understand how to use useEffect in your React components. Remember that useEffect is a powerful tool that can simplify your code and make it easier to manage side effects. With a little practice, you will be using useEffect like a pro in no time.