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What will be the output of this Ruby code?

medium📝 Predict Output Q5 of 15
Ruby - String Operations
What will be the output of this Ruby code? 
text = "abc"
text << "def"
text << 33.chr
puts text
Aabcdef33
Babcdef!
Cabcdef
DError: can't convert Fixnum to String
Step-by-Step Solution
Solution:

  1. Step 1: Understand 33.chr

    33.chr returns the character with ASCII code 33, which is "!".

  2. Step 2: Append characters to string

    Appending "def" then "!" results in "abcdef!".

  3. Final Answer:

    abcdef! -> Option B

  4. Quick Check:

    Appending characters with << works with strings [OK]
Quick Trick: Use chr to convert ASCII code to character [OK]
Common Mistakes:
  • Expecting 33 to append as string
  • Confusing chr output
  • Thinking << can't append characters

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