Ruby - Control Flow
You want to print "Access denied" only when a user is NOT an admin. Which Ruby code using
unless is correct?You want to print "Access denied" only when a user is NOT an admin. Which Ruby code using unless is correct?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the condition needed
We want to print 'Access denied' only if user is NOT admin.Step 2: Match condition with
unlessunless user.admin?runs block ifuser.admin?is false, exactly when user is not admin.Step 3: Check other options
unless user.admin? puts 'Access granted' end prints wrong message, C uses if with negation (correct but not using unless), D prints denied when user is admin (wrong).Final Answer:
unless user.admin? puts 'Access denied' end -> Option AQuick Check:
Use unless for negated condition [OK]
Quick Trick: Use unless for simple negated conditions [OK]
Common Mistakes:
MISTAKES- Mixing messages with wrong conditions
- Using if with negation instead of unless
- Printing denied when user is admin
Master "Control Flow" in Ruby
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