What is the purpose of 'appropriateFor' property when creating a URL?

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Created Jan ’22

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The documentation here seems to be incomplete. There is no explanation of the appropriateFor property that is being passed in the example.

I do not understand the relevance of a desktop URL being passed in this example to create a temporary directory.

Example code I have found seem to always pass 'nil' to this property.

Answered by Claude31 in 702139022

Doc says:

… for the domain parameter, and a URL for the url parameter which determines the volume of the returned URL.

domain and url are the parameters names (not the labels):

func url(for directory: FileManager.SearchPathDirectory,  in domain: FileManager.SearchPathDomainMask, appropriateFor url: URL?, create shouldCreate: Bool) throws -> URL

So they effectively refer to in and appropriateFor parameters labels.

Passing nil for url means you ignore it and you do not specify url volume.

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Answer 1

southernyankee OP

Jan ’22

Hmmm... Going back to that page and reading again I am now wondering if this is just a type-o?

Maybe the documentation should read "...and a URL for the appropriateFor parameter which determines the volume of the returned URL." ???

If that's the case, then I think I understand the purpose of this parameter.

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Answer 2

Claude31 OP