Prototypes

Lesson in the JavaScript Roadmap · Stage 3: Data Types

Last updated 14 September 2026

What is Prototypes?

JavaScript is an object-oriented language built around a prototype model. In JavaScript, every object inherits properties from its prototype, if there are any. A prototype is simply an object from which another object inherits properties. To create complex programs using JavaScript, one has to be proficient in working with prototypes — they form the very core of OOP in the language.

Study this in the interactive course See the whole JavaScript roadmap

Free resources to learn Prototypes

ArticlePrototypes in JavaScript - A Comprehensive Guide
ArticlePrototypes, Inheritance
ArticleObject prototypes - MDN
VideoPrototype in Javascript - Object Prototype

Prototypes: common questions

Can I learn Prototypes 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 Prototypes 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 Prototypes tutorial for beginners?

It is lesson 20 of 124 in the free JavaScript roadmap, in stage 3, Data Types. If you are new to JavaScript, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.