Given a function that returns a tuple with a person's name and age, how can you extract these values into separate variables?

hard📝 Application Q15 of 15

Swift - Data Types

func getPerson() -> (String, Int) {
    return ("Emma", 28)
}
// Extract values here

Alet person = getPerson() let personName = person[0] let personAge = person[1]

Blet (personName, personAge) = getPerson()

Clet personName = getPerson().name let personAge = getPerson().age

Dlet personName, personAge = getPerson()

Step-by-Step Solution

Solution:

Step 1: Understand tuple unpacking
Swift allows unpacking tuple return values directly into variables using parentheses.
Step 2: Evaluate options
let (personName, personAge) = getPerson() correctly unpacks both values at once. let person = getPerson() let personName = person[0] let personAge = person[1] uses invalid indexing. let personName = getPerson().name let personAge = getPerson().age attempts to access nonexistent labels. let personName, personAge = getPerson() has invalid syntax.
Final Answer:
let (personName, personAge) = getPerson() -> Option B
Quick Check:
Tuple unpacking uses let (a, b) = tuple [OK]

Quick Trick: Unpack tuples with let (a, b) = function() [OK]

Common Mistakes:

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