Swift - Loops
Which Swift range expression correctly iterates from 1 up to but not including 10 in a for-in loop?
Which Swift range expression correctly iterates from 1 up to but not including 10 in a for-in loop?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Understand range operators
The operator..<creates a half-open range excluding the upper bound, while...includes it.Step 2: Identify the correct range
To iterate from 1 up to but not including 10, use1..<10.Final Answer:
1..<10 -> Option BQuick Check:
Range excludes 10, so loop stops before 10 [OK]
Quick Trick: ..< excludes upper bound, ... includes it [OK]
Common Mistakes:
- Using ... which includes the upper bound
- Starting range at 0 instead of 1
- Confusing inclusive and exclusive ranges
Master "Loops" in Swift
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Swift Quizzes