Today, we’ll see how to create custom React hooks to simplify your components and reuse logic.

Reusable logic is key to maintaining clean, DRY (Don’t Repeat Yourself) React code. Building custom hooks helps reduce complexity and improve code readability making it easier to manage your React apps.

Most developers repeat logic across multiple components or bloat their components with too much responsibility. This leads to harder-to-maintain code and increases the chances of bugs.

Why Custom Hooks Matter in React

Custom hooks allow you to extract stateful logic from components, making it easier to reuse across your application. With custom hooks your code becomes more modular, clean, and easier to test.

Here’s why you should consider creating custom hooks:

Simplifies testing by isolating logic.

Improves maintainability and readability.

Keeps components lean by abstracting logic.

Enhances code reuse without duplicating logic across components.

Creating a Simple Custom Hook

Let’s create a custom hook that handles the logic for form inputs, a common use case where you must manage input values and handle changes across multiple form fields.

This useFormInput hook encapsulates the logic of managing input state and updates. You can now use this hook to manage any form field in your components.

How to Use Custom Hooks in Components

Here’s how you can use the useFormInput hook in a form component:

In this example, the name and email inputs are managed with the useFormInput hook, which keeps the form logic simple.

More Examples of Custom Hooks

Let’s take another scenario: creating a useToggle hook that handles boolean states. This can be useful for toggling a modal or a dropdown menu.

Here’s how you can use useToggle in a component:

In this example, the useToggle hook manages whether the modal is open or closed, keeping the logic separated and reusable across other components.

Conclusion

Building custom hooks is a powerful way to abstract and reuse logic in React applications. They help keep your components lean, promote code reuse, and make your application easier to manage. By identifying repetitive logic, you can encapsulate it into reusable hooks, keeping your codebase clean.

See you next Post!

Keep up the great work! :)