[Solved] What is wrong with this guard clause?def valid?(input) return true if input.empty? false end — Ans: It returns true for empty input, which may be incorrect logic | Ruby

Ruby - Control Flow

What is wrong with this guard clause?

def valid?(input)
  return true if input.empty?
  false
end

AThe method should raise an error instead of returning

BMissing parentheses in method definition

CGuard clause should return false, not true

DIt returns true for empty input, which may be incorrect logic

Step-by-Step Solution

Solution:

Step 1: Analyze guard clause logic
The guard clause returns true if input is empty, which may not be the intended validation.
Step 2: Consider typical validation meaning
Usually, empty input is invalid, so returning true here is likely a logic mistake.
Final Answer:
It returns true for empty input, which may be incorrect logic -> Option D
Quick Check:
Guard clause logic must match validation intent [OK]

Quick Trick: Check guard clause logic matches expected validation [OK]

Common Mistakes:

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