[Solved] Why does YARD allow multiple @param tags with the same parameter name but different types? — Ans: To document that the parameter can accept multiple types (union types). | Ruby

Ruby - Ecosystem and Best Practices

Why does YARD allow multiple @param tags with the same parameter name but different types?

ATo generate errors for ambiguous documentation.

BBecause YARD does not check for duplicate tags.

CTo document different parameters with the same name in overloaded methods.

DTo document that the parameter can accept multiple types (union types).

Step-by-Step Solution

Solution:

Step 1: Understand YARD's support for union types
YARD allows multiple @param tags for the same parameter to indicate it accepts multiple types.
Step 2: Eliminate incorrect reasons
YARD does check tags; Ruby does not support method overloading; errors are not generated for this.
Final Answer:
To document that the parameter can accept multiple types (union types). -> Option D
Quick Check:
Multiple @param tags = union types [OK]

Quick Trick: Multiple @param tags mean parameter accepts multiple types [OK]

Common Mistakes:

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Why does YARD allow multiple @param tags with the same parameter name but different types?