React Class Components | React JS tutorial 2022

Опубликовано: 14 Октябрь 2024
на канале: Webish Media
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what are React Class Components ?

Before React 16.8, Class components were the only way to track state and lifecycle on a React component. Function components were considered "state-less".With the addition of Hooks, Function components are now almost equivalent to Class components. The differences are so minor that you will probably never need to use a Class component in React. Even though Function components are preferred, there are no current plans on removing Class components from React JS .This tutorial will give you an overview of how to use Class components in React JS .

Components are independent and reusable bits of code. They serve the same purpose as JavaScript functions, but work in isolation and return HTMLvia a render() function.Components come in two types:

Class components
Function components

in this tutorial you will learn about Class components.

When creating a React component,the component's name must start with an upper case letter. The component has to include the
extends React.Component statement, this statement creates an inheritance to React.Component, and gives your component access to React.Component's functions.The component also requires a
render() method, this method returns HTML.


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