In the previous article, we assigned a string to a variable (let myName = ‘Jan’;). Now, let’s see how to concatenate and interpolate strings. Concatenation Concatenation is a fancy word for combination, and it’s performed with a + operator. It allows us…

Let’s focus on the console.log() for a bit now. The log() part is a method, which is a special kind of function. We will discuss functions and methods later, but since we use this one so frequently, I wanted you to know in the…

Imagine a container where you store a value. In programming, this kind of container is called a variable. Computer stores data in memory cells. Each cell has its own address so the computer can access it to either store or retrieve…

You probably remember operators from your math class, so this topic should be pretty familiar. JavaScript has several built-in  arithmetic operators, that allow us to perform calculations on numbers. Here’s the list of these operators including the symbols: Open your JavaScript…

In programming, we use the various kinds of data. To make a distinction, there are seven types of data in JavaScript. Except for the object data type that you already learned about (remember console?), the rest of them are so called primitives. These are…

Once you start writing code, you’ll realize that not everything you write is meant to be executed by the program. On top of that, your code will become difficult to understand, especially if you don’t follow naming conventions which we…

The console is a special part of web browser aimed for developers. It helps us see what’s going on in our code. To make something appear in the console, we can print it with the  log command. To be more specific, the  console also…

What is JavaScript? JavaScript is an essential programming language supported by all modern browsers. It is crucial for anyone who wants to become a web developer to understand this web technology that’s expected to grow as a critical part of…