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Identify the error in this Ruby heredoc code:

medium📝 Debug Q14 of 15
Ruby - String Operations
Identify the error in this Ruby heredoc code: 
message = <
AThe string must be enclosed in quotes
BThe starting identifier should be lowercase
CThe heredoc must use <<~ instead of <<
DThe ending identifier must match exactly and be alone on its line
Step-by-Step Solution
Solution:

  1. Step 1: Check heredoc start and end identifiers

    Heredoc must end with the same identifier used to start it, alone on a line with no spaces.

  2. Step 2: Analyze given code

    Start identifier is GREETING but end identifier is END, which is incorrect.

  3. Final Answer:

    The ending identifier must match exactly and be alone on its line -> Option D

  4. Quick Check:

    Start and end identifiers must match [OK]
Quick Trick: End heredoc with the exact same word alone on a line [OK]
Common Mistakes:
MISTAKES
  • Mismatching start and end identifiers
  • Adding spaces after end identifier
  • Using lowercase instead of uppercase identifiers

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