[Solved] Identify the mistake in this Ruby code:def check_nil(val) if val = nil "No value" else "Has value" end end puts check_nil(nil) | Ruby

Ruby - Variables and Data Types

Identify the mistake in this Ruby code:

def check_nil(val)
  if val = nil
    "No value"
  else
    "Has value"
  end
end

puts check_nil(nil)

AUsing puts instead of print

BUsing nil instead of false in the condition

CMissing parentheses in method definition

DUsing assignment (=) instead of comparison (==) in the if condition

Step-by-Step Solution

Solution:

Step 1: Analyze the if condition
The condition if val = nil assigns nil to val instead of comparing.
Step 2: Correct the condition
It should be if val == nil or better if val.nil?.
Final Answer:
Using assignment (=) instead of comparison (==) in the if condition -> Option D
Quick Check:
Assignment in condition always returns nil (falsey) [OK]

Quick Trick: Use == or .nil? for comparison, not = [OK]

Common Mistakes:

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