JavaScript

Lesson in the Server Side Game Developer Roadmap · Stage 10: Socket Programming

Last updated 14 September 2026

What is JavaScript?

JavaScript (often abbreviated as JS) is a high-level, interpreted programming language that conforms to the ECMAScript specification. It plays a key role in web development as it is one of the three core languages of the World Wide Web, along with HTML and CSS. In server-side game development, JavaScript can be utilized through runtime environments such as Node.js. Over the years, JavaScript has evolved to incorporate additional features, such as support for object-oriented and functional programming styles. It is dynamically-typed, and supports event-driven programming, which is especially handy in game development for handling user inputs and system events. Despite its name, JavaScript is not related to Java.

Study this in the interactive course See the whole Server Side Game Developer roadmap

Free resources to learn JavaScript

Official docsSocket.IO - Real-Time Bidirectional Event-Based Communication
ArticleExpress/Node.js Server-Side Development - MDN
ArticleWebSocket API - MDN Web Docs

JavaScript: common questions

Can I learn JavaScript in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain JavaScript in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this JavaScript tutorial for beginners?

It is lesson 59 of 156 in the free Server Side Game Developer roadmap, in stage 10, Socket Programming. If you are new to Server Side Game Developer, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.