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Learn About JavaScript | JavaScript Fundamentals
Introduction to JavaScript

bookAbout JavaScript

JavaScript (JS) is one of the most widely used programming languages in the world. It powers Frontend development and is also used in Backend, mobile apps, desktop apps, web scraping, machine learning, and even games.

Its main strength, however, is Frontend development.

Why JavaScript Matters in Frontend

All modern browsers have a built-in JavaScript engine, allowing JS to run directly in the browser. This makes JavaScript the only programming language capable of creating dynamic, interactive websites without additional tools.

Key JavaScript Features

  • Versatile: used across many areas of IT, not just the web;
  • Interactive: can change the DOM in real time, enabling dynamic user interfaces;
  • Cross-platform: works on different devices and operating systems;
  • Beginner-friendly: has a simple, familiar syntax;
  • Large community: thousands of libraries, tools, and resources;
  • Fast: performs calculations and tasks efficiently for an interpreted language.

1. Why is JavaScript uniquely essential for Front-End development?

2. What makes JavaScript a powerful tool for building interactive user interfaces?

question mark

Why is JavaScript uniquely essential for Front-End development?

Select the correct answer

question mark

What makes JavaScript a powerful tool for building interactive user interfaces?

Select the correct answer

Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 1. ChapterΒ 1

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bookAbout JavaScript

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JavaScript (JS) is one of the most widely used programming languages in the world. It powers Frontend development and is also used in Backend, mobile apps, desktop apps, web scraping, machine learning, and even games.

Its main strength, however, is Frontend development.

Why JavaScript Matters in Frontend

All modern browsers have a built-in JavaScript engine, allowing JS to run directly in the browser. This makes JavaScript the only programming language capable of creating dynamic, interactive websites without additional tools.

Key JavaScript Features

  • Versatile: used across many areas of IT, not just the web;
  • Interactive: can change the DOM in real time, enabling dynamic user interfaces;
  • Cross-platform: works on different devices and operating systems;
  • Beginner-friendly: has a simple, familiar syntax;
  • Large community: thousands of libraries, tools, and resources;
  • Fast: performs calculations and tasks efficiently for an interpreted language.

1. Why is JavaScript uniquely essential for Front-End development?

2. What makes JavaScript a powerful tool for building interactive user interfaces?

question mark

Why is JavaScript uniquely essential for Front-End development?

Select the correct answer

question mark

What makes JavaScript a powerful tool for building interactive user interfaces?

Select the correct answer

Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 1. ChapterΒ 1
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