Clearbridge Mobile interview question
What is an optional in Swift?
Interview Answer
Anonymous
15 Apr 2020
An optional is used to let a variable of any type represent the lack of value. An optional variable can hold either a value or nil any time.
What is an optional in Swift?
Anonymous
An optional is used to let a variable of any type represent the lack of value. An optional variable can hold either a value or nil any time.
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