Hard
How to test if an optional variable is non-null?
Author: Jorge GomesStatus: PublishedQuestion passed 360 times
Edit
2
Community EvaluationsNo one has reviewed this question yet, be the first!
Similar QuestionsMore questions about Swift
1
What is the type of an undefined variable in Swift?1
Swift: What is the output of the following code? `var x = 10; x = x + undefined; print(x)`0
Can we override both getter and setter in Swift?0
What is the purpose of the required keyword in Swift?0
Write a Swift function that takes a closure as a parameter and returns the result of the closure.