In this chapter, we take the very first steps with JavaScript and learn about numbers, variables and functions.

This blog post provides an overview of my new series of blog posts called “Web development for beginners”.

In the last chapter, we worked with numbers. In this chapter, we’ll work with text and write our first applications.

In this chapter we look at one way of storing more than one value in a variable: arrays.

In this chapter, we learn about tools for only running a piece of code if a condition is met: truth values (booleans), comparisons and if statements.

In this chapter, we learn how to do things repeatedly in JavaScript.

In this chapter we explore two topics: A shell is like browser console, but for the operating system instead of for JavaScript. It helps us with programming by running the tools (programs) we need to get things done. Node.js is a program that lets us run…

In this chapter, we run a web server on our own computer and use it to serve a web app.

So far, all of our JavaScript code resided in a single file – be it an .html file or a .js file. In this chapter, we learn how to split it up into multiple files. And how to automatically test if the code we write is correct.

In this chapter, we learn how to create plain objects with properties. We use them to create a simple flash card app.

In this blog post, we discuss Oracle’s trademark of the word “JavaScript”: What are the problems caused by that trademark? How can we fix those problems?

In this chapter, we look at exceptions in JavaScript. They are a way of handling errors. We’ll need them for the next chapter.

In this chapter, we’ll explore the data structure Map (a class) which lets us translate (“map”) from an input value to an output value. We’ll use a Map to display text upside-down in a terminal!

In this chapter, we explore the popular data format JSON. And we implement shell commands via Node.js that read and write files.

In this chapter, we learn how to handle tasks that take a long time to complete – think downloading a file. The mechanisms for doing that, Promises and async functions are an important foundation of JavaScript and enable us to do a variety of interesting…

In this chapter we develop a small web app in the same way that large professional web apps are developed: We use libraries that we install via npm. We write tests for some of the functionality. We combine all JavaScript code into a single file before we…

In this chapter, we’ll take a look at frontend frameworks – libraries that help with programming web user interfaces (“frontend” means “browser”, “backend” means “server”). We’ll use the frontend framework Preact to implement the frontend part of a todo list…

In this chapter, we’ll write our own web server: It will serve files and manage the data for a browser app.

In this chapter, we learn how to write a server that lets users log in via passwords. That process is called authentication.

In this chapter, we install a package manager for our operating system. That enables us to install shell commands that we can’t get via npm.

In this chapter, we explore Markdown, a lightweight markup language that’s easy to learn and used a lot when writing about programming: documentation, comments, etc. We’ll need it in the next chapter. Learning it may seem like a detour but it’s easy to pick…