How to Build a RAG-Powered Chatbot Using JavaScript and LangChain

Apr 18, 2025 · 5 min read · 📘 Introduction Chatbots are getting smarter, but there’s a limit to how much a language model (LLM like Gemini or ChatGPT) "knows" — because it's based on training data that can go out of date. That’s where RAG (Retrieval-Augmented Generation) comes...