[Solved] Identify the problem in this Ruby method: def multiply_all(*values) product = 1 values.each do |v| product *= v end product end puts multiply_all(2, 3, '4') | Ruby

Ruby - Methods

Identify the problem in this Ruby method:

def multiply_all(*values)
  product = 1
  values.each do |v|
    product *= v
  end
  product
end

puts multiply_all(2, 3, '4')

AThe method should use + instead of * for multiplication

BThe method should initialize product to 0 instead of 1

CThe method should use map instead of each

DThe method does not handle string arguments causing a TypeError

Step-by-Step Solution

Solution:

Step 1: Analyze the method behavior
The method multiplies all arguments starting with product = 1.
Step 2: Check argument types
Passing a string '4' will cause a TypeError when multiplying an Integer by a String.
Step 3: Review options
The method does not handle string arguments causing a TypeError correctly identifies the error. Options B, C, and D are incorrect.
Final Answer:
The method does not handle string arguments causing a TypeError -> Option D
Quick Check:
Multiplying Integer by String causes error [OK]

Quick Trick: Check argument types when using arithmetic operations [OK]

Common Mistakes:

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