React custom hooks

Good day fellow developers, trust you all are having a nice time. Today I'd like to share some importance of using React custom hooks and how they can benefit developers.

React custom hooks are a powerful tool that can:

- Help engineers improve the quality of their code,

- Enhance code reusability,

- Increase development speed.

Before we dive into what custom hooks are, you've probably seen or came across some developers blotting a component with useState, useEffect etc inside a simple component. Most of the times it becomes tedious to maintain and thereby going against the Separation of concerns rule.

The idea of React is actually to make components reusable and follow the Don't Repeat Yourself(DRY) Principle.

What are React custom hooks?

React custom hooks are reusable functions that allow developers to share logic between components. They enable developers to extract common logic from a component and encapsulate it into a separate function, which can then be used by other components. This approach helps to reduce code duplication and improves the overall readability and maintainability of the codebase.

What are the importance of using React Custom Hooks?(You may ask)

Well it helps in:

Reusability,

Encapsulation,

Improved readability and maintainability,

Improved testing

Quick bug detection

Reusability

One of the most significant benefits of using custom hooks is that they promote code reusability. Instead of duplicating the same code in different components, you can extract common logic into a custom hook and reuse it in multiple places. This approach helps to reduce code duplication, making the codebase cleaner, more concise, and easier to maintain.

Encapsulation

Another advantage of custom hooks is that they allow developers to encapsulate complex logic within a single function. This approach makes it easier to manage the codebase since the logic is isolated within the hook, and changes made to it only affect the hook itself.

Improved readability and maintainability

By separating the logic from the components, custom hooks make the code easier to read and maintain. This approach helps to improve code quality and reduce the likelihood of introducing bugs or errors in the codebase.

Improved testing

Custom hooks can also help improve the testing of components. Since the logic is isolated within the hook, it can be tested separately from the component. This approach makes it easier to test the logic in isolation and ensures that the component is only responsible for rendering the UI.

Quick bug detection

Remember we talked about blotting a component with so many hooks and logics? Well if they are moved to a custom hook chances are that it would be easier to detect bugs quickly.

Instead of going to a component and start your usual debugging process, you just have to go to your Single Source Of Truth(SSOT), your custom hook and do what you have to do.

When to use React Custom Hooks, Convention and Examples

As you can tell, a React hook starts with the word 'use' and it is conventional to follow this practice.

You might have seen some cases where you'll have to work with Local Storage in different components, working with forms or some top-notch animations, sorting a list of items.

These are some examples where you could implement a Custom hook.

Examples:

useLocalStorage

The useLocalStorage hook allows you to persist data in the browser's localStorage. This hook can be useful for saving user preferences or storing session data.

useMediaQuery

The useMediaQuery hook allows you to check the current viewport size and respond to changes. This hook can be useful for creating responsive designs or implementing different UI layouts based on the device type.

useAnimation

The useAnimation hook allows you to make some animation on your app based on your UI and then connect it to your component

useForm

The useForm hook allows you to handle form submission and validation. This hook can be useful for managing form data and handling errors.

Conclusion

In conclusion, React custom hooks are a powerful tool that can help developers improve the quality of their code, enhance code reusability,increase development speed and also contribute in bug fixes. By promoting code reusability, encapsulating complex logic, and improving code readability and maintainability, custom hooks can make your codebase cleaner and easier to manage. So, the next time you find yourself duplicating code across multiple components, consider extracting the logic into a custom hook and become a better developer today.