TechnologyProfession
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TechnologyProfession
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41
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41 questions
Hard
2 votes360 runs0 comment
How to check if a variable is defined in Swift
Jorge Gomesat Nov 27, 2021
Easy
1 vote370 runs0 comment
Swift: What is the output of the following code? `var x = 10; x = x + undefined; print(x)`
Smart&Softat Nov 27, 2021
Expert
1 vote363 runs0 comment
What is the type of an undefined variable in Swift?
Smart&Softat Nov 3, 2021
Easy
0 vote422 runs0 comment
Is the following a valid Swift variable name? 'undefined'
Smart&Softat Apr 12, 2023
Medium
0 vote375 runs0 comment
Automatic retain and release markers during compilation, freeing manual memory management
Smart&Softat Nov 27, 2021
Easy
0 vote368 runs0 comment
How to use the internal notification center in Swift
Smart&Softat Nov 16, 2021
Easy
0 vote365 runs0 comment
Explain the difference between frame and bounds in SwiftUI.
Smart&Softat Nov 27, 2021
Easy
0 vote365 runs0 comment
What is the difference between `return` and `return()` in Swift?
Jorge Gomesat Nov 5, 2021
Medium
0 vote361 runs0 comment
Swift: What is the difference between unowned and weak?
Smart&Softat Nov 27, 2021
Easy
0 vote361 runs0 comment
How to make a property editable in InterfaceBuilder
Smart&Softat Nov 27, 2021
Easy
0 vote361 runs0 comment
Is the following a valid Swift expression? `undefined`
Smart&Softat Nov 27, 2021
Hard
0 vote361 runs0 comment
What is the purpose of the required keyword in Swift?
Smart&Softat Nov 5, 2021
Easy
0 vote358 runs0 comment
What happens when you try to unwrap an optional value that doesn't have a value?
Smart&Softat Nov 27, 2021
Medium
0 vote357 runs0 comment
What is the default access level for a class in Swift?
Smart&Softat Nov 5, 2021
Easy
0 vote356 runs0 comment
Is the following code valid? ``` var x = 10 var y = x ```
Smart&Softat Nov 27, 2021