Author: Daniel

Fixing the TypeError promptValue.toChatMessages is not a function in LangChain.js

Tool Calling in LangChain.js Part 2: Adding Tools to a Model, Using ToolMessage, Tool Schemas, and More

Tool Calling in LangChain.js Part 1: What are tools and when to use them

Using ChatGPT Vision API with LangChain in JavaScript

Using RunnableBranch to Route Execution to Different Prompts in LangChain.js

Prompt Templates, Partial Templates, and Composition in LangChain.js

Routing in LangChain JS – Use LLM Classifiers to Call Different Prompts

RunnableMap and RunnableParallel in LangChain JS

Custom Functions with RunnableLambda in LangChain JS

Javascript includes() multiple values

LangChain JavaScript – execute generated code

Nested Chains in LangChain JS – Passing the Output from One Chain to Another

Fixing the LangChain JS error: f-string Missing value for input ${node.name}

Why learn LangChain (as a JavaScript developer)?

Fixing the ‘Missing value for input variable chat_history’ error in LangChain JS