At the previous part of the tutorial, we’ve briefly covered the basics of unit testing. This time we will go further and start testing React with the Enzyme library. Thanks to the that, your application will be more reliable and it will be easier to avoid regression. Even though we will be using Jest here, Enzyme also works […]
Hello! Today we start another big series, which is about JavaScript testing. There are various different types of tests and we will start by explaining some of them. In the beginning, we will cover the basics of unit testing, which is testing individual parts of our application and checking if they are fit to use. To […]
In the first article of this Webpack 4 course series, we’ve covered imports and exports. This time we will dig deeper into dynamic imports because they deserve a separate article. We will explain what they are and how to use them. Let’s start! Webpack 4 course: what are dynamic imports? Back in the days, ECMAScript […]
In this part of our webpack 4 course, we will take the idea of optimization even further. We will learn what the tree shaking is and how to use it. You will find out what requirements you need to meet in order for the Webpack 4 tree shaking to work and how can it benefit […]
Today we will cover the development value of the mode property. It will automatically set the webpack configuration for you to make the development easier. Aside from that, we will also cover the wepback-dev-server and webpack-serve – Hot Module Replacement included. Let’s go! Webpack 4 course: a development server A one step forward to a better development experience […]
In this part of the Webpack 4 course, we will focus on increasing the experience of users of your application by making our output smaller. This will mean handling the code in a different way in the production environment. Today we will explain the built-in optimization in Webpack achieved by the mode parameter, so let’s go! […]
Hello! Today we introduce the concept of plugins. They differ from loaders in a way that they can perform a wider range of tasks. Basically, they do anything else, that loaders can’t do. While loaders are tied to a certain type of files, plugins can be more generic. This time we will learn what purpose […]
Today we continue our webpack 4 tutorial. After walking through the basic concepts of webpack, it is time to go deeper. This time we will cover something that is a great strength of webpack: loaders. First, we will learn how to use loaders that are available. This will include handling css, scss, image files and […]
Hello! Today we begin a webpack 4 course. We will start with the basic concepts of Webpack, with every part of the course going deeper. This time we will learn the basics of module bundling using ES6 modules. Webpack 4 provide default configuration, which we will go through. Let’s go! Webpack 4 course begins – […]
In the previous article, we’ve learned what events are and how to work with them. This time we will dive a bit deeper into them, explaining in more details how do they work. We will go through the event object and create our own, custom events. We will also simulate some native events that take […]
