how to check if file exist use swift, rewrite from objective c

Question

how to rewrite this objective-c language to swift?

NSString *filePath = @"/Applications/MySample.app";
    if ([[NSFileManager defaultManager] fileExistsAtPath:filePath])
    {
        // avoid open add friend
    }

regards.

Answer 1

Equivalent Swift 3 Code:

let filePath = "/Applications/MySample.app"
if (FileManager.default.fileExists(atPath: filePath)) {
    // avoid open add friend
}

Swift 2

let filePath = "/Applications/MySample.app"
if (NSFileManager.defaultManager().fileExistsAtPath(filePath))
{
    // avoid open add friend
}

Answer 2

Some years after the question has been asked I recommend to take rewrite literally and use the URL related API

let fileURL = URL(fileURLWithPath:"/Applications/MySample.app")
if let _ = try? fileURL.checkResourceIsReachable()  {
   // file exists
}