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What does an until loop do in Ruby?

easy📝 Conceptual Q11 of 15
Ruby - Loops and Iteration
What does an until loop do in Ruby?
ARepeats code while the condition is false
BRepeats code while the condition is true
CRuns code only once
DStops code immediately
Step-by-Step Solution
Solution:

  1. Step 1: Understand the until loop condition

    An until loop runs as long as its condition is false.

  2. Step 2: Compare with while loop

    Unlike while which runs when true, until runs when false.

  3. Final Answer:

    Repeats code while the condition is false -> Option A

  4. Quick Check:

    Until loop runs while condition is false [OK]
Quick Trick: Until loops run while condition is false, opposite of while [OK]
Common Mistakes:
MISTAKES
  • Thinking until runs while condition is true
  • Confusing until with while loop
  • Assuming until runs only once

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