React Hooks were introduced in React 16.8 that allows you enhance your react functional components in multiple ways. They were introduced to make it easier to manage state and side-effects in functional components, and also to make it easier to share logic between components.

In this article i will be covering the most popular react hook with their usage and examples:

The useState hook allows you to add state to a functional component. It takes an initial value as an argument and returns an array with two elements: the current state and a function to update it.

The useEffect hook allows you to run side-effects in a functional component, such as fetching data or updating the document title. It takes a callback function as an argument and runs it after the component has rendered.

The useContext hook allows you to access the context in a functional component. It takes the context object as an argument and returns the current context value.

The useReducer hook allows you to handle state updates with a reducer function in a functional component. It takes a reducer function and an initial state as arguments and returns the current state and a dispatch function.

The useCallback hook returns a memoized callback that only changes if one of its dependencies has changed. This is useful when passing callbacks to optimized child components that rely on reference equality to prevent unnecessary renders.

 changes, which means that the component using this callback will not re-render unless one of those values change.

In conclusion, React Hooks have greatly simplified the way we handle state and side-effects in functional components. By understanding and utilizing the most popular hooks, such as useState, useEffect, useContext, useReducer, and useCallback, you can create clean, efficient, and maintainable code.

With useState, you can easily add state to your functional components. useEffect lets you handle side-effects, such as data fetching and updates to the document title. useContext allows you to access context in functional components, making it easy to share data across your application. useReducer allows you to handle state updates with a reducer function, and useCallback returns a memoized callback that only changes if its dependencies have changed, which is useful for optimizing child components.


React Hooks have become a powerful tool for building dynamic and performant applications, allowing developers to write clear and concise code that is easy to understand, maintain and test. As you continue to work with React, mastering these hooks will be essential to creating high-quality user interfaces.


Dive into the World of React Hooks: An Introduction to the Most Popular Hooks

As developers, we all have our own unique personalities and characteristics that shape the way we work and approach our craft. To help shine a light on the different types of developers out there, we've created this guide to show some of the most common developer archetypes.

This developer is all about the grind. They're the ones you'll see working late into the night and on weekends, always pushing to get the job done no matter the cost.

This developer is all about getting things just right. They'll spend hours tweaking and refining their code, making sure that every little detail is perfect. 

This developer has been in the game for too long. They're tired, overworked, and just looking for a way out. They're the ones who are always complaining about how hard the job is and how they're just not cut out for it.

This developer is all about finding the easiest and quickest way to get the job done. They're the ones who are always looking for shortcuts and looking for ways to automate their work.

The Different Types of Developers

React Hooks were introduced in React 16.8 as a way to handle state and side-effects in functional components. One of the most powerful features of Hooks is the ability to create custom Hooks, which allow you to extract and reuse logic across your application.

A custom Hook is a JavaScript function whose name starts with “use”. This naming convention allows React to recognize it as a Hook. React uses the Hooks rules to ensure that Hooks are called in the correct order and only at the top level of your component. These rules, such as only calling Hooks at the top level of a component and not within loops or conditions, ensure that your component behaves correctly and re-renders properly.

One of the major benefits of using custom Hooks is the ability to reuse logic across your application. Instead of duplicating the same logic in multiple components, you can extract it into a custom Hook and use it wherever it is needed. This helps to keep your code DRY (Don't Repeat Yourself) and makes it easier to maintain.

Another advantage of custom Hooks is that they make your code more organized and readable. By extracting logic into separate functions, you can break down complex components into smaller, more manageable pieces. This makes it easier to understand and reason about your code, especially as your application grows in size.

Custom Hooks also make it easier to test your code. Since custom Hooks are just regular JavaScript functions, they can be tested in isolation using standard JavaScript testing tools. This is especially useful when testing logic that is shared across multiple components.


Custom Hooks also allows you to optimise your components, by using useCallback and useMemo, to improve the performance of your application by preventing unnecessary re-renders.

Creating a custom Hook is as simple as extracting a piece of logic from a component and putting it into a separate function. For example, let's say you have a component that handles a form submission. You could extract the logic for handling the form submission into a custom Hook called 

Now you can use this custom Hook in your component:

Custom Hooks not only make it easy to extract and share logic across your application, but they also make it easy to test and reason about your code. Since custom Hooks are just regular JavaScript functions, they can be tested in isolation using standard JavaScript testing tools, such as Jest.


In summary, custom Hooks are a powerful feature of React Hooks that allow you to extract and share logic across your application in a reusable and composable way. They promote a more organized and maintainable codebase, and make it easy to test and reason about your code.

Archive

Dive into the World of React Hooks: An Introduction to the Most Popular Hooks

The Different Types of Developers

Building a Custom Hook in React: Reusable and Composable Logic