Struggling with converting UIImage to the JpegData, any help for this?

if let jpegData = yourUIImage.jpegData(compressionQuality: 0.8) { try? jpegData.write(to: yourURL, options: [.atomic, .completeFileProtection]) }

What should I write to the "yourURL" ?

Here's an excellent response from @roosterboy!

See -> Excellent Response

I'm not sure why the last 2 people have provided links to instructions for posting questions clearly on this forum.

It is pretty clear what you are asking about given the title of your post, and taking a quick peek at the challenge instructions for Day 77

The yourURL should be replaced with the URL that you want to save your data to. In this project, it is a file in the File Manager. You can use something like this to store the URL of the file that you are trying to write your data to, and be able to read from the same URL later so you don't have to try to find it twice.

let savePath = FileManager.documentsDirectory.appendingPathComponent("NamedFaces")

Then you would use savePath in place of yourURL in the provided example.

You can get the data that represents your UIImage (so that it can easily be written to a file) by using

var jpegData = yourUIImage.jpegData(compressionQuality: 0.8)

Then when you read the data back from your file later, you can convert the data back into a UIImage by using something like

var yourUIImage = UIImage(data: jpegData)