How can I read a file in a swift playground

Question

Im trying to read a text file using a Swift playground with the following

let dirs : String[]? =    NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory         


        

Answer 1

While the answer has been supplied for a quick fix, there is a better solution.

Each time the playground is opened it will be assigned a new container. This means using the normal directory structure you would have to copy the file you want into the new container every time.

Instead, inside the container there is a symbolic link to a Shared Playground Data directory (/Users/UserName/Documents/Shared Playground Data) which remains when reopening the playground, and can be accessed from multiple playgrounds.

You can use XCPlayground to access this shared folder.

import XCPlayground

let path = XCPlaygroundSharedDataDirectoryURL.appendingPathComponent("foo.txt")

The official documentation can be found here: XCPlayground Module Reference

Cool post on how to organize this directory per-playground: Swift, Playgrounds, and XCPlayground

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UPDATE: For swift 4.2 use playgroundSharedDataDirectory. Don't need to import anything. Looks like:

let path = playgroundSharedDataDirectory.appendingPathComponent("file")