How can you make a property optional in Swift?
Posted On: Jun 12, 2024
An optional in Swift is a type that can hold either a value or no value. Optionals are written by appending a ? to any type:
Example
var name: String? = "Online Interview Questions"
Declaring a question mark "?" in the code can make a property optional.
If a property doesn’t hold a value, then this symbol "?" helps in avoiding the runtime errors.
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