YARN RUN DEV SERVER INSTALL
YARN RUN DEV SERVER CODE

Setup Webpack configuration for entry and output Speaking of, the Webpack configurations is nothing but an object that will needs to get export. It will be helpful when we need to define path values on our webpack configuration. This function is responsible to return a valid path. IвЂ™m also creating a variable, resolveAppPath, that is assigned to a function. IвЂ™m utilizing the filesystem ( fs) module to fetch me an absolute path of the current working directory of the project. And the module path, and fs are native Node.js modules. ThatвЂ™s because Webpack utilizes Node.js to run.

YARN RUN DEV SERVER CODE

On the first couple lines of code youвЂ™ll notice that IвЂ™m importing modules that were not defined in the package.json file. Gets absolute path of file within app directoryД¬onst resolveAppPath = relativePath => path.resolve(appDirectory, relativePath) Д¬onst host = || 'localhost' In the root of the project I will create a file named .ДЇirst IвЂ™m going to add some helpful variables and functions.Д¬onst HtmlWebpackPlugin = require('html-webpack-plugin') Д¬onst appDirectory = fs.realpathSync(process.cwd()) The next step is to work on the webpack config file.

YARN RUN DEV SERVER INSTALL

Go ahead and run npm install to install these dependencies. Npm start will run the command client webpack-dev-server and tell it to look for the Webpack config. When youвЂ™re going to run npm start on your terminal. The next important part of this code is the script that was added.

webpack-dev-server вЂ“ Will enable use to create a localhost dev environment.

webpack-cli вЂ“ Allows us to use the webpack command client tool.webpack вЂ“ Will allow us to bundle all of our code into a final build.react-dom вЂ“ Will allow us to grab a React app and dump onto to the DOM.react вЂ“ Will allow us to write React code.$ npm i -save-dev html-webpack-plugin webpack webpack-cli webpack-dev-server 'ДЇor the moment IвЂ™m going to install the minimal dependencies to get a React dev server running. That script tag will be the entry point to the React application.

Later in this guide, I will tell Webpack to use this HTML file for development and to automatically inject a script tag element at the bottom of this file. This HTML has 1 simple job, and that is to serve our React app and attach it to a div element with an ID of root. Inside the public directory, I will add a file called, index.html. The public directory is responsible for holding any CSS stylesheets, image assets, and of course, your skeleton HTML markup. The first step I will take is to create a directory called, public.

Configure Webpack mode, entry point, and output.

Setup package.json file and install dev dependencies.

Create index.html file and public directory.

Now that you know Webpack dev server may help you quickly develop a React application, letвЂ™s break down the steps. Webpack dev server should ONLY be used for development. Webpack dev server is also a separate package that needs to get install via NPM. The Node.js server listens to when files were changed, and triggers events to react accordingly. It uses a library called SockJS to emulate a web socket. Under the hood, Webpack dev server is a mini Node.js Express server. That way itвЂ™s easy, and fast to develop your React application. The next step is to create a development environment with Webpack, and add hot reloading. Later when Webpack creates a bundle file, it will end up in the dist folder.So you wrote your entry and output point on your Webpack config file. Keep your index.html in this folder and write your code in the src folder. You can view the getting started guide (( ).Д«abel enables you to write code using all the latest and greatest features of ECMAScript and converts it to backwards compatible code for older environments that may not support all of the newest features.Д¬reate a dist folder for your distribution code. It allows you to write your code in as many separate files as you need and creates a single output file for you to import into your html file. I figured it might be good to explain my set up and hopefully it can help others get their projects set up as well. To be honest, every time I need to set them up in a new project I just reference an old one and adapt it to my current needs. Webpack and Babel are extremely helpful, but they can be pretty overwhelming and confusing to set up. This blog entry was first posted on April 29, 2020) (Note: I'm moving my posts from my time at Flatiron School from my Github to this platform.

Yarn run dev server