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Js Classes Modules — Free Javascript Tutorial

Learn Js Classes Modules in Javascript with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

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TL;DR: Learn Js Classes Modules in Javascript with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated Jul 14, 2026

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Js Classes Modules in Javascript

ES6 classes provide a clean syntax for object-oriented programming. They are syntactic sugar over JavaScript's prototype-based inheritance.

extends creates inheritance. super() calls the parent constructor. Override parent methods to customise behaviour in child classes.

static methods belong to the class itself, not instances. Call them as ClassName.method() not new ClassName().method().

ES6 modules use export/import for code organisation. Named exports: export const x = 1. Default export: export default MyClass. Import: import MyClass from "./file.js".

Js Classes Modules — Syntax

class Animal {
  constructor(name) { this.name = name; }
  speak() { return \

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