Create Nested Components in React.js

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28 Oct, 2018 Categories: ReactJS


Create New Project

Create new folder named LearnReactJSWithRealApps and select to this folder in
Visual Studio Code

Install ReactJS Libraries

Open Terminal windows in Visual Studio Code and type:

npm install -g babel
npm install -g babel-cli
npm install webpack --save
npm install webpack-dev-server --save
npm install react --save
npm install react-dom --save
npm install --save-dev style-loader
npm install --save-dev css-loader




Create Components

In root folder of project, create new folder src\components. In this folder, create new components as below:

Component 1

Create new file named component1.component.jsx as below: 

import React from 'react';

class Component1Component extends React.Component {

    render() {
        return (
            <div>
                <h3>Component 1</h3>
            </div>
        );
    }

}

export default Component1Component;

Component 2

Create new file named component2.component.jsx as below: 

import React from 'react';

class Component2Component extends React.Component {

    render() {
        return (
            <div>
                <h3>Component 2</h3>
            </div>
        );
    }

}

export default Component2Component;

Component 3

Create new file named component3.component.jsx as below: 

import React from 'react';

class Component3Component extends React.Component {

    render() {
        return (
            <div>
                <h3>Component 3</h3>
            </div>
        );
    }

}

export default Component3Component;

Demo Component

Create new file named demo.component.jsx as below: 

import React from 'react';

import Component1Component from './component1.component.jsx';
import Component2Component from './component2.component.jsx';
import Component3Component from './component3.component.jsx';

class DemoComponent extends React.Component {

    render() {
        return (
            <div>
                <Component1Component/>
                <Component2Component/>
                <Component3Component/>
            </div>
        );
    }

}

export default DemoComponent;




Create Entry File

In root folder of project, create new file named main.js as below:

import React from 'react';
import ReactDOM from 'react-dom';

import DemoComponent from './src/components/demo.component.jsx';

ReactDOM.render(<DemoComponent />, document.getElementById('app'));

Create WebPack Config File

In root folder of project, create new file named webpack.config.js as below:

var config = {
    entry: './main.js',

    output: {
        path: __dirname,
        filename: 'index.js',
    },

    devServer: {
        inline: true,
        port: 8081 // server port
    },

    module: {
        loaders: [
            {
                test: /\.css$/,
                loader: 'style-loader'
            },
            {
                test: /\.css$/,
                loader: 'css-loader',
                query: {
                    modules: true,
                    localIdentName: '[name]__[local]___[hash:base64:5]'
                }
            },
            {
                test: /\.jsx?$/,
                exclude: /node_modules/,
                loader: 'babel-loader',
                query: {
                    presets: ['es2015', 'react']
                }
            }
        ]
    }
}

module.exports = config;

Create HTML File

In root folder of project, create new file named index.html as below:

<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Learn ReactJS With Real Apps</title>
</head>
<body>

    <div id="app"></div>
    <script src="index.js"></script>

</body>
</html>

Create package.json

In root folder of project, create new file named package.json as below:

{
  "name": "learnreactjswithrealapps",
  "version": "1.0.0",
  "description": "Learn ReactJS With Real Apps",
  "main": "main.js",
  "dependencies": {
    "babel-core": "^6.24.0",
    "babel-loader": "^6.4.1",
    "babel-preset-es2015": "^6.24.0",
    "babel-preset-react": "^6.23.0",
    "react": "^15.4.2",
    "react-dom": "^15.4.2",
    "webpack": "^2.3.2",
    "webpack-dev-server": "^2.4.2"
  },
  "devDependencies": {
    "css-loader": "^0.28.11",
    "style-loader": "^0.21.0"
  },
  "scripts": {
    "start": "webpack-dev-server"
  },
  "repository": {
    "type": "git",
    "url": "git+https://github.com/reactjs/react-tutorial.git"
  },
  "keywords": [
    "react"
  ],
  "author": "PMK Lab",
  "license": "ISC",
  "bugs": {
    "url": "https://github.com/reactjs/react-tutorial/issues"
  },
  "homepage": "https://github.com/reactjs/react-tutorial#readme"
}

Structure of Project




Run Application

In Terminal windows in Visual Studio Code and type: npm start,
program will open url http://localhost:8081/ on browser

Output


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