The previous tutorials have shown you how to set up a basic web application with Webpack 5. So far, Webpack is only used to bundle all your JavaScript files, to transpile new JavaScript features via Babel, and to serve your bundle in development mode via Webpack's Development Server. Basically that's everything that's needed to get started with…

In this tutorial, you will learn how to set up Webpack to use images as assets for your application. Essentially, there is not much in Webpack to include your desired images for your web application. First, put your image files into one folder of your projects application. For instance, your src/ folder may have a folder assets/ which has a…

In this tutorial, you will learn how to set up a local font with Webpack. We will use Open Sans, but you can decide to use any other web font as well. If you have your font files already at your disposal, don't bother about downloading them again. For our case, we will download the font to our local setup from Google Webfonts . Therefore, follow…

So far, you should have a working JavaScript with Webpack application. In this tutorial, we will take this one step further by introducing ESLint for an enforced unified code style without code smells. Code style becomes an important topic for developers. If you just code for yourself, it might be alright to violate best practices. However, in a…

Babel enables one writing code with JavaScript features that aren't supported by most browser yet. Perhaps you have heard about JavaScript ES6 (ES2015) , ES7, and other versions of ECMAScript specification which are up and coming for the JavaScript language. At the time of reading this, various versions may be already included in the JavaScript…

If you happen to have a custom Webpack setup, you may be wondering how to set up CSS with Webpack. This short tutorial walks you through the process. First of all, you need to install a CSS loader and a style loader to your dev dependencies: And second, you can use both loaders for all CSS files in your Webpack configuration: Then in a new src…

If you happen to have a custom Webpack setup, you may be wondering how to set up SASS with Webpack. This short tutorial walks you through the process. First of all, you need to install a SASS loader and a SASS to your dev dependencies: And second, you can use the SASS loader for all CSS and SCSS files in your Webpack configuration: Then in a new…

If you happen to have a custom Webpack setup, you may be wondering how to set up PostCSS with Webpack. This short tutorial walks you through the process. First of all, you need to install the PostCSS loader and a sensible PostCSS configuration to your dev dependencies: Next, create a postcss.config.js file where you will reference all your…

Here you will learn how to use Jest with Babel Module Resolver for aliases that are defined in your .babelrc file: In order to get the same alias mappings to Jest, the jest.config.js file needs to look like this: Now you can use import statemes with aliases in your Jest testing environment too.