[Solved] What will this Ruby code output?def greet_user(name) puts "Hello, #{name}!" end greet_user("Bob") — Ans: Hello, Bob! | Ruby

Ruby - Ecosystem and Best Practices

What will this Ruby code output?

def greet_user(name)
  puts "Hello, #{name}!"
end

greet_user("Bob")

Agreet_user

BHello, name!

CHello, Bob!

DError: undefined method

Step-by-Step Solution

Solution:

Step 1: Understand string interpolation in Ruby
#{name} inside double quotes inserts the value of the variable name.
Step 2: Trace the method call
Calling greet_user("Bob") prints "Hello, Bob!".
Final Answer:
Hello, Bob! -> Option C
Quick Check:
String interpolation inserts variable = A [OK]

Quick Trick: Use #{var} inside double quotes to insert values [OK]

Common Mistakes:

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