Which of the following is the correct syntax to safely access the property count of an optional string name in Swift?

easy📝 Syntax Q3 of 15

Swift - Operators and Expressions

Which of the following is the correct syntax to safely access the property count of an optional string name in Swift?

Alet length = name!.count

Blet length = name?.count

Clet length = name.count?

Dlet length = name??.count

Step-by-Step Solution

Solution:

Step 1: Understand safe property access syntax
Safe access uses ?. to access properties only if the optional is not nil.
Step 2: Check each option
name?.count is correct; name!.count force unwraps; name.count? and name??.count are invalid syntax.
Final Answer:
let length = name?.count -> Option B
Quick Check:
Safe property access = ?. [OK]

Quick Trick: Use ?. to safely access optional properties [OK]

Common Mistakes:

Master "Operators and Expressions" in Swift

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More Swift Quizzes