Swift - Loops
You want to create a
repeat-while loop that prints numbers from 10 down to 1. Which code snippet correctly achieves this?You want to create a repeat-while loop that prints numbers from 10 down to 1. Which code snippet correctly achieves this?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Identify counting direction
We want to count down from 10 to 1, so num should start at 10 and decrease.Step 2: Check loop condition and decrement
var num = 10 repeat { print(num) num -= 1 } while num > 0 starts at 10, prints num, then decreases num by 1, looping while num > 0, which prints 10 to 1.Final Answer:
var num = 10 repeat { print(num) num -= 1 } while num > 0 -> Option DQuick Check:
Counting down loop with correct condition and decrement [OK]
Quick Trick: Count down: start high, decrement, loop while > 0 [OK]
Common Mistakes:
- Incrementing when counting down
- Starting from 1 instead of 10
- Wrong loop condition direction
Master "Loops" in Swift
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Swift Quizzes