Ruby - Control Flow
Which of the following is the correct way to use the ternary operator in Ruby to assign
result based on score?Which of the following is the correct way to use the ternary operator in Ruby to assign result based on score?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Understand ternary syntax
The ternary operator in Ruby follows the format:condition ? value_if_true : value_if_false.Step 2: Analyze options
result = score > 50 ? 'Pass' : 'Fail' correctly uses?and:to separate true and false values.
result = score > 50 ? 'Pass', 'Fail' incorrectly uses a comma instead of a colon.
result = score > 50 then 'Pass' else 'Fail' uses incorrect keywords not valid in ternary.
result = if score > 50 then 'Pass' else 'Fail' end uses if-else syntax, not ternary.Final Answer:
result = score > 50 ? 'Pass' : 'Fail' -> Option DQuick Check:
Check for?and:in the expression [OK]
Quick Trick: Ternary uses '?' and ':' for true and false [OK]
Common Mistakes:
- Using comma instead of colon between values
- Using if-else keywords inside ternary
- Omitting the colon ':' separator
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