Job offersCompaniesTestsBlogI'm an employerSign upLog in
Home>IT Tests>Questions>Test the type of an optional variable in addition to as?,Test if an optional variable is non-null

Question from the Swift test

Test the type of an optional variable in addition to as?,Test if an optional variable is non-null

Hard

In what context do you use if let?

Author: Jorge GomesStatus: PublishedQuestion passed 392 times
Edit
0
Community EvaluationsNo one has reviewed this question yet, be the first!
Similar Questions
More questions about Swift
3
How to check if a variable is defined in Swift
1
Can we override both getter and setter in Swift?
1
What is the purpose of the required keyword in Swift?
1
What is the type of an undefined variable in Swift?
1
Is the following code valid? ``` var x = 10 var y = x ```