Generative AI for Javascript Developers - LangChain, RAG

Our verdict: worth it — as long as the IT & Software skills on the syllabus match what you actually want to learn. The regular price for Generative AI for Javascript Developers - LangChain, RAG on Udemy is $109.99. With the coupon code on this page, that falls to $10.99 — a saving of $99.00, or 90% off the standard rate Spread across 3h of on-demand video, that works out to roughly $3.66 per hour of content — cheaper than a single chapter of most printed IT & Software textbooks.

A cheap price means nothing if the material is thin — here the syllabus is organized around usable outcomes. Amit Gupta walks you through generative AI technology and building LLM powered applications, langchain with Javascript/Typescript using latest Langchain version (Nov 2025: updated to latest v1.0 version), and build RAG application using private data — skills meant to be used, not just watched. It has already been taken by 3,038 students and holds a 4.6-star average from verified reviews, which suggests the content holds up once learners actually apply it.

Check the prerequisites before you commit: Basic JavaScript/Typescript knowledge, experience with Nodejs; Basic software engineering concepts. Best suited to learners who already have footing in IT & Software. Plan for roughly 3h of on-demand video at your own pace. Lessons are delivered in English.