Swift - Collections
Which of the following is the correct way to create a Set of integers in Swift?
Which of the following is the correct way to create a Set of integers in Swift?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall Set creation syntax
In Swift, a Set can be created by specifying type and using square brackets with values.Step 2: Check each option's syntax
let numbers: Set= [1, 2, 3, 4] uses correct syntax: Set<Int> = [1, 2, 3, 4]. Others have syntax errors or wrong casting.Final Answer:
let numbers: Set<Int> = [1, 2, 3, 4] -> Option BQuick Check:
Set creation = type + brackets [OK]
Quick Trick: Use Set with brackets for values [OK]
Common Mistakes:
- Using parentheses instead of brackets
- Trying to cast arrays directly to Set without syntax
- Missing type declaration when needed
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