README.md

Boilerplate to create a .Net web project with react and babel

References

• Video Tutorial React and Babel
• Tutorial Babel and TypeScript
• [Tutorial Babel, Webpack and Typescript)[https://medium.com/@dahvinchee/how-to-set-up-a-react-typescript-project-from-scratch-with-babel-and-webpack-6b069881229d]

Create a react folder inside the script folder

• npm init
• npm install webpack webpack-cli --save-dev
• npm install react react-dom --save
• npm install typescript --save-dev
• npm install @babel/core babel-loader @babel/preset-react @babel/preset-typescript @babel/plugin-proposal-class-properties @babel/plugin-proposal-object-rest-spread --save-dev

Make shure you have "babel-loader": "^7.1.5", instead of 8 by default.

• npm install css-loader style-loader --save-dev
• npm install html-webpack-plugin --save-dev
• optional npm install webpack-dev-server --save-dev
• optional npm install tslint tslint-immutable --save-dev

Types

• npm install @types/react @types/react-dom

Create webpack.config.js file

Webpack is simply a module bundler. While it can bundle almost any resource or asset, it is most commonly used to bundle JavaScript files for use in a browser, in this case it will be bundling or .tsx and .ts files into .js so it can be served

"use strict";
const path = require('path');

module.exports = {
    context: __dirname,
    entry: "./app.js",
    output: {
        path: path.resolve(__dirname, "dist"),
        filename: "bundle.js"
    }
}

Modify package.json

Enter the webpak as run script

"scripts": {
    "webpack": "webpack --mode development",
    "test": "echo \"Error: no test specified\" && exit 1"
},

Create starting js file

app.js with some ES6 code like const x = "this is new feature of ES6";

Run sanity check

npm run webpack

Your output will be located in the Scripts/React/dist folder. Include this folder with the bundle.js into your solution Please not the ES6 is not transpiled to ES5 yet. Need to enable Babel

Enable Babel in the webpack.config.js

module.exports = {
    context: __dirname,
    entry: "./app.jsx",
    output: {
        path: path.resolve(__dirname, "dist"),
        filename: "bundle.js"
    },
    module: {
        rules: [
            {
                **test: /\.jsx?$/,
                exclude: /(node_modules)/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['babel-preset-env', 'babel-preset-react']
                    }
                }**
            }
        ]
    }
}

TypeScript

Install types for react

• npm install --save-dev @types/react @types/react-dom

TypeScript loader for dev

• npm install --save-dev typescript ts-loader source-map-loader

Both of these dependencies will let TypeScript and webpack play well together. ts-loader helps Webpack compile your TypeScript code using the TypeScript’s standard configuration file named tsconfig.json. source-map-loader uses any sourcemap outputs from TypeScript to inform webpack when generating its own sourcemaps. This will allow you to debug your final output file as if you were debugging your original TypeScript source code. Source

Add TypeScript configuration file

Simply create a new file in your project root named tsconfig.json and fill it with the following contents

{
    "compilerOptions": {
        "outDir": "./dist/",
        "sourceMap": true,
        "noImplicitAny": true,
        "module": "commonjs",
        "target": "es6",
        "jsx": "react"
    }
}