Swift - Loops
Which of the following is the correct syntax to create a stride in Swift that counts down from 10 to 2 by steps of 2, including 2?
Which of the following is the correct syntax to create a stride in Swift that counts down from 10 to 2 by steps of 2, including 2?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Identify counting down with inclusion
Counting down from 10 to 2 means the step is negative (-2). Including 2 means usingthrough.Step 2: Match syntax to requirements
Onlystride(from: 10, through: 2, by: -2)matches counting down with inclusion of 2.Final Answer:
stride(from: 10, through: 2, by: -2) -> Option AQuick Check:
Use 'through' to include end, negative step for countdown [OK]
Quick Trick: Use 'through' to include end; negative step for countdown [OK]
Common Mistakes:
- Using 'to' instead of 'through' when including the end
- Using positive step when counting down
- Swapping start and end values
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