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Course Content

Introduction to JavaScript

About JavaScriptAbout JavaScript

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.


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.

Section 1.

Chapter 1