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An Introduction to JavaScript

Free Resource

intro-to-javascript
Learn the basics of one of the world's most popular programming languages.
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In this guide, you'll learn about.

  • What JavaScript Is
  • Data Types, Variables, and Operators
  • Control Flow
  • Object-Oriented Programming
  • Functions
  • Scope
  • Data Structures
  • And More!

Get started with JavaScript.

JavaScript is one of the three core web development technologies, alongside Hypertext Markup Language (HTML) and Cascading Style Sheets (CSS). While HTML structures the webpage’s content and CSS handles styling and layout, JavaScript adds interactivity, logic, and advanced features, which this guide explores further. Developers combine these technologies to make websites esthetically pleasing and engaging.

By learning and mastering JavaScript, you’ll be prepared to take on a great variety of web development tasks and create impressive web applications. After finishing this guide, you’ll be ready to tackle basic web development projects with a solid foundation to expand your knowledge further.

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