Differences between React Hooks and Classes
Aspect |
Hooks |
Classes |
---|---|---|
Syntax |
Hooks use regular JavaScript functions |
Classes use the class syntax with ` |
State Management |
The useState hook is used with hooks to define and update state variables. |
In classes, the state is defined using the `this.state` object and updated with `this.setState()`. |
Lifecycle Methods |
The `useEffect` hook in hooks is used to handle related lifecycle events. |
To handle component lifecycle events, classes contain lifecycle methods such as `componentDidMount`, `componentDidUpdate`, and `componentWillUnmount`. |
Code Organization |
Hooks allow you to group together relevant logic by breaking it into smaller custom hooks. |
With classes, relevant logic and state are frequently dispersed over many lifecycle methods and class methods. |
Reusability |
Hooks encourage reuse by allowing you to design custom hooks that encapsulate a group of related functionalities. |
Classes can be reused by using higher-order components (HOCs) or render properties. |
Learning Curve |
Hooks came into use later and offer a simpler and more logical approach to writing components. |
React has had classes since its early versions, therefore there are more instructional materials and code samples to choose from. |
Why to use React Hooks Instead of Classes in React JS ?
The introduction of React Hooks has changed the way we are managing states and lifecycle features. They offer more easy and functional way as compared to class based components. In this article, we will learn why to use React Hooks Instead of Classes in ReactJS, but lets first discuss about both React hooks and class based components.
Table of Content
- What are React Hooks?
- What are class-based Components in React?
- Advantages of Using Hooks over Classes
- Differences between React Hooks and Classes
- Conclusion