**JavaScript (JS)** is one of the most popular programming languages. JS can be used in different areas of the IT industry: Front-End, Back-End, Machine Learning, Web Scraping, Mobile Apps, Desktop Apps, Games, etc. But the main JS direction is Front-End.

# Why Front-End Development?
Browsers have a built-in JavaScript interpreter, which means that JavaScript code can be executed directly in the browser. This makes JavaScript an essential tool in Front-End Development and it cannot be replaced by any other programming language in this area.

The ability to execute code in the browser allows for the creation of dynamic and interactive websites.

# Features
JavaScript is a good programming language that has many positive features:

- **Versatility**: JS can be used in different areas of the IT industry: Web Development, Artificial Intelligence, Mobile Apps, etc.

- **Interactivity**: JS has the ability to manipulate Document Object Model (DOM) elements in real-time that are used for creating dynamic and interactive user interfaces.

- **Cross-Platform Compatibility**: JS code can be executed on different operating systems and devices.

- **Easy to Learn**: JS has a syntax that is similar to other popular programming languages.

- **Large Community**: There are many open-source libraries written by other developers. JS is constantly evolving.

- **Fast and Efficient**: JS can perform calculations and processing tasks faster than other interpreted programming languages.


First, let's get acquainted with JavaScript and look at its syntax. In this section, you will get a basic familiarity with the JavaScript syntax to make it easier to learn in detail later on.

Now it's time to learn about the data types that JavaScript works with. We'll start by looking at the difference between literals and variables, and then delve into the various data types.

We have become familiar with the various data types. Now, let's learn how to work with them by learning the operations we can perform with each data type.

Next, we will learn how to control the flow of execution. It's a straightforward process: we can tell the interpreter exactly what to do under certain conditions.

Next, we will explore how to shorten code using repetitive looped actions. We will examine the types of loops available in JavaScript and learn how to work with them.

Finally, to be able to write simple programs, we need to learn about functions that can make our lives much easier. We will learn how to create and use our functions.