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Beginning React

You're reading from   Beginning React Simplify your frontend development workflow and enhance the user experience of your applications with React

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Product type Paperback
Published in Jul 2018
Publisher
ISBN-13 9781789530520
Length 96 pages
Edition 1st Edition
Languages
Tools
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Toc

Managing the Internal State

Components have the ability to store data that can change over time.

When a component shows data that can change over time, we want changes to be shown as soon as possible. For example, consider the ProductList component: it shows a list of products contained in the products array. If a new product is added to the array, we want it to be shown immediately. React provides a mechanism to support the automatic rendering of a component when data changes. Such a mechanism is based on the concept of state.

React state is a property that represents data that changes over time. Every component supports the state property, but it should be used carefully.

Again, consider the ProductList component:

import React from 'react';
import Product from './Product';

class ProductList extends React.Component {
render() ...
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