Ruby - Class Methods and Variables
What is the output of this Ruby code?
class String
def shout
self.upcase + "!"
end
end
puts "hello".shoutWhat is the output of this Ruby code?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the reopened String class
Theshoutmethod returns the string in uppercase plus an exclamation mark.Step 2: Apply the method to "hello"
Calling"hello".shoutreturns "HELLO!".Final Answer:
HELLO! -> Option BQuick Check:
Reopened method output = HELLO! [OK]
Quick Trick: Reopened methods work like normal instance methods [OK]
Common Mistakes:
- Expecting lowercase output
- Thinking method is undefined
Master "Class Methods and Variables" in Ruby
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