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React State

React State

Learn what state means in a React application.

We'll cover the following...

React state

React has a built-in state object. This state object is where we store values that relate to a component. The rendering of a React component depends on its state. When the state of a component changes, the component rerenders.

import React from 'react';
require('./style.css');

import ReactDOM from 'react-dom';
import App from './app.js';

ReactDOM.render(
  <App />, 
  document.getElementById('root')
);
Hello World React application

The widget above is a class-based React component. Remember that there are two ways of creating a React component, which are by using Javascript classes and Javascript functions. The widget above shows the ...