Swift - Collections
Given the code below, what is the type of the array
values?
let values = ["1", 2, 3.0]
Given the code below, what is the type of the array values?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Analyze mixed element types
The array contains a String ("1"), an Int (2), and a Double (3.0).Step 2: Understand Swift type inference with mixed types
Since elements are of different types that cannot be unified, Swift infers the array type as Array. Final Answer:
Array-> Option A Quick Check:
Mixed unrelated types infer to Array[OK]
Quick Trick: Mixed unrelated types infer to Array [OK]
Common Mistakes:
- Assuming array is Array
- Assuming array is Array
- Expecting compilation error
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