Ruby - String Operations
How can you use heredoc syntax to create a multiline string that includes Ruby code interpolation and removes leading indentation?
How can you use heredoc syntax to create a multiline string that includes Ruby code interpolation and removes leading indentation?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand interpolation and indentation in heredoc
To allow Ruby code interpolation, the heredoc delimiter must be unquoted or double-quoted. To remove indentation, use <<~.Step 2: Identify correct syntax
<<~"DELIM" allows interpolation and removes leading whitespace.Final Answer:
<<~ with double quotes around delimiter -> Option BQuick Check:
Use <<~"DELIM" for interpolation + indent removal [OK]
Quick Trick: Use <<~"DELIM" for interpolation and indent removal [OK]
Common Mistakes:
- Using single quotes disables interpolation
- Using <<- does not remove indentation
- Forgetting quotes disables interpolation
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