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Given this code snippet:

medium📝 state output Q4 of 15
LangChain - LangGraph for Stateful Agents
Given this code snippet:
nodeA.connect(nodeB, condition=lambda x: x > 5)
nodeB.connect(nodeC)

What happens if the input to nodeA is 3?
AThe flow skips nodeB and goes directly to nodeC.
BThe flow proceeds to nodeB regardless of the condition.
CThe flow stops at nodeA and does not proceed to nodeB.
DThe flow causes an error due to the condition.
Step-by-Step Solution
Solution:
  1. Step 1: Analyze the condition on nodeA connection

    The condition lambda x: x > 5 means nodeB is only reached if input is greater than 5.
  2. Step 2: Evaluate input 3 against condition

    Since 3 is not greater than 5, the condition fails, so the flow does not proceed to nodeB.
  3. Final Answer:

    The flow stops at nodeA and does not proceed to nodeB. -> Option C
  4. Quick Check:

    Condition false = flow stops [OK]
Quick Trick: Conditions control flow progression [OK]
Common Mistakes:
MISTAKES
  • Ignoring the condition and proceeding anyway
  • Assuming flow skips nodes automatically
  • Expecting an error from condition

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