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Which of the following is a valid way to start a heredoc string named DATA in Ruby?

easy📝 Conceptual Q2 of 15
Ruby - String Operations
Which of the following is a valid way to start a heredoc string named DATA in Ruby?
A<<DATA
BAll of the above
C<<~DATA
D<<-DATA
Step-by-Step Solution
Solution:

  1. Step 1: Review heredoc start syntaxes

    Ruby supports three common heredoc starters: <<DATA, <<-DATA, and <<~DATA, each with slightly different whitespace handling.

  2. Step 2: Confirm all are valid

    All three syntaxes correctly start a heredoc named DATA; the differences are in how indentation is handled.

  3. Final Answer:

    All of the above -> Option B

  4. Quick Check:

    All heredoc starters valid = B [OK]
Quick Trick: All <<, <<-, <<~ start heredoc strings [OK]
Common Mistakes:
  • Thinking only << is valid
  • Confusing <<- and <<~ as invalid
  • Missing that all three start heredoc

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