Swift - Loops
What does a
for-in loop do when used with a collection like an array in Swift?What does a for-in loop do when used with a collection like an array in Swift?
easy📝 Conceptual Q1 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the purpose of a for-in loop
A for-in loop is designed to repeat actions for each item in a collection, like an array.Step 2: Identify what happens during iteration
During each loop, the code accesses one item at a time from the collection in order.Final Answer:
It goes through each item in the collection one by one. -> Option CQuick Check:
for-in loop purpose = iterate items [OK]
Quick Trick: For-in loops visit each item in order [OK]
Common Mistakes:
- Thinking it modifies the collection
- Confusing iteration with sorting
- Assuming it creates a new collection
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