Bird
0
0

Which is the correct syntax to create a node named 'Start' in Langchain?

easy📝 Syntax Q3 of 15
LangChain - LangGraph for Stateful Agents
Which is the correct syntax to create a node named 'Start' in Langchain?
Anode = new Node['Start']
Bnode = createNode('Start')
Cnode = Node.create('Start')
Dnode = Node('Start')
Step-by-Step Solution
Solution:

  1. Step 1: Recall Langchain node creation syntax

    Nodes are created by calling Node with the name as a string argument.

  2. Step 2: Match the correct syntax

    node = Node('Start') uses Node('Start'), which is the correct constructor call.

  3. Final Answer:

    node = Node('Start') -> Option D

  4. Quick Check:

    Node creation = Node('name') [OK]
Quick Trick: Use Node('name') to create nodes [OK]
Common Mistakes:
MISTAKES
  • Using incorrect function names
  • Using square brackets instead of parentheses
  • Calling non-existent methods

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More LangChain Quizzes
Evaluation and Testing - Creating evaluation datasets - Quiz 2easy Evaluation and Testing - Custom evaluation metrics - Quiz 8hard Evaluation and Testing - A/B testing prompt variations - Quiz 13medium LangChain Agents - ReAct agent implementation - Quiz 5medium LangChain Agents - Custom agent logic - Quiz 13medium LangGraph for Stateful Agents - State schema definition - Quiz 2easy LangGraph for Stateful Agents - Conditional routing in graphs - Quiz 14medium LangGraph for Stateful Agents - Why LangGraph handles complex agent flows - Quiz 12easy LangSmith Observability - Why observability is essential for LLM apps - Quiz 14medium Production Deployment - LangServe for API deployment - Quiz 11easy