swift Archives - IT Nursery

Programming, swift

IT Nursery

What’s the cleanest way of applying map() to a dictionary in Swift?

I’d like to map a function on all keys in the dictionary. I was hoping something like the following would work, but filter ...

June 3, 2022
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Programming, swift

IT Nursery

Error-Handling in Swift-Language

I haven’t read too much into Swift but one thing I noticed is that there are no exceptions. So how do they do ...

June 2, 2022
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Programming, swift

IT Nursery

try, try! & try? what’s the difference, and when to use each?

In Swift 2.0, Apple introduced a new way to handle errors (do-try-catch). And few days ago in Beta 6 an even newer keyword ...

June 2, 2022
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Programming, swift

IT Nursery

Swift: #warning equivalent

Does Swift have a #warning equivalent? It’s simply used to show a warning in Xcode’s own GUI I’m also interested in whether there’s ...

June 2, 2022
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Programming, swift

IT Nursery

Flatten an Array of Arrays in Swift

Is there a counterpart in Swift to flatten in Scala, Xtend, Groovy, Ruby and co? var aofa = [[1,2,3],[4],...

June 2, 2022
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Programming, swift

IT Nursery

Convert string to date in Swift

How can I convert this string "2016-04-14T10:44:00+0000" into an NSDate and keep only the year, month, day, hour? The T in the middle ...

June 2, 2022
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Programming, swift

IT Nursery

Wait until swift for loop with asynchronous network requests finishes executing

I would like a for in loop to send off a bunch of network requests to firebase, then pass the data to a ...

June 1, 2022
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Programming, swift

IT Nursery

How to round a Double to the nearest Int in swift?

I’m trying to make a calculator of growth rate (Double) that will round the result to the nearest Integer and recalculate from there, ...

June 1, 2022
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Programming, swift

IT Nursery

SwiftUI: How to implement a custom init with @Binding variables

I’m working on a money input screen and need to implement a custom init to set a state variable based on the initialized ...

June 1, 2022
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Programming, swift

IT Nursery

Xcode 8 Beta 3 Use Legacy Swift issue

I have an Objective-C project in Xcode 8 Beta 3. Since updating, whenever I try to build I receive the following error: “Use ...

May 31, 2022
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