So I want to make a swift file in the sources folder that imports UIKit, but it says that no such module 'UIKit', why is it like that? Can someone help?

I'm trying to add a breakpoint in the line # gutter, but no breakpoint is added when I do this in the playground. Is this possible or is there another way to set breakpoints in the playground?

I'm new in the Swift world. How can I converting a String with a comma to a String with a decimal? The code work's fine with a dot (.) The problem is when I'm using a comma (,) ... with: var pri...

I've upgraded to MacOS 11 (Big Sur) Beta 4. And Xcode 12 beta 4. I have a Swift playground with Combine publishers: Just([1,2,3]) .setFailureType(to: Error.self) // Make the compiler pick up new A...

I've typed a very simple error into an Xcode playground: import UIKit var greeting = "Hello, playground" ["foo", "bar"][2] // error The console correctly prints th...

I want my function to calculate the average of my Double type array. The array is called "votes". For now, I have 10 numbers. When I call the average function to get the average of the array vote...

I had just recently downloaded xcode and everytime I write code and come to an error, I would fix the error but the console and preview do not update. It down not change the error live will not rer...

Using Playgrounds 4.3 on macOS 13, I am trying to save a file, in this case an JSON file, to disk. As an example I use this code, so it should work but not in Playgrounds. Are there setting that i ...

I'm experimenting code from https://alanquatermain.me/programming/swiftui/2019-11-15-CoreData-and-bindings/ my goal is to have DatePicker bind to Binding< Date? > which allow for nil value ins...

I know that to program in STDIN and STDOUT, we need to make an command line project in Xcode. But how do I take a standard input in playground. Whenever I try to run such code in playground var...

Can i import Swift Package to my Playground that is in my workspace? I've already read the answer, but i think it's outdated, because now we can use Swift Packages in iOS projects.

The following error was invoked when I wrote case 2841001 ... 393200 : I figured out my error (having an extra digit in the first number, copy paste error), but I would love to learn how to use "th...

Xcode 14, in a playground (with import UIKit): let uuid = UUID().uuidString let boundary = "Boundary-\(uuid)" Fine. But uuid isn't really needed, so let's collapse that into a single lin...

I created a Swift Playground on my iPad and did all of my graphics positioning on the iPad simulator. Does anyone know how to edit the size of the Xcode playground simulator? Thanks in advance.

In the next code I'm trying to call the deinit method releasing all the references to the Person Class instance Mark but the deinit is never called. Why? class Person{ let name:String init(na...

How do I make a UIImageView with rounded corners on a Swift iOS Playground? Inside it needs to be filled with a color.

I want to add an SKScene (.sks) to my Swift Playground App project (.swiftpm) on Xcode but when I add it to the project navigator I get the following error: found 1 file(s) which are unhandled; exp...

Playground shows the error below and even after restart it is still not working. Any idea how to solve this? Error: Failed to prepare for communication with playground for an unknown reason.

If we have, for example, situation like this: var myString = "Today was a good day" What is the best way to return the first word, which is "Today"? I think mapping should be applied, but not s...

In blog posts like https://useyourloaf.com/blog/adding-playgrounds-to-xcode-projects/, or the kickstarter source code http://github.com/kickstarter/ios-oss they add playground to xcode projects in ...

When I use the for loop in Playground, everything worked fine, until I changed the first parameter of for loop to be the highest value. (iterated in descending order) Is this a bug? Did any one el...

I waited long time but my playground project is not showing result on right side bar I am using right code but still right bar is not updating i don't know what is the problem i tried lot of time. ...

I'm trying to run this async function on Xcode Playground: import Foundation import PlaygroundSupport PlaygroundPage.current.needsIndefiniteExecution = true enum NetworkingError: Error { case in...

I'm new to IOS development and I have started with the swift language. I'm trying to get the value from two text fields and convert those two text fields into json and send that json to the server...

There seems to be a strange issue with iOS Playgrounds where NSUserDefaults always returnsnil instead of the actual value. In an iOS Playground the last line wrongly returns nil. import UIKit le...