Pass Values to Parameters in Component in React.js

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

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

In root folder of project, create new folder src\components. In this folder, create new file named demo.component.jsx as below:

import React from 'react';

class DemoComponent extends React.Component {

    render() {
        return (
            <div>
                Age: {this.props.age}
                <br/>
                Username: {this.props.username}
            </div>
        );
    }

}

export default DemoComponent;

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';

var age = 20;
var username = 'PMK Lab';
ReactDOM.render(<DemoComponent age={age} username={username} />, document.getElementById('app'));

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;

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>

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"
}

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

Create New Project

Install ReactJS Libraries

Create Component

Create Entry File

Create WebPack Config File

Create HTML File

Create package.json

Structure of Project

Run Application

Output