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    func WriteAndRead()
    {
        if let dir : NSString = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.AllDomainsMask, true).first
        {
            self.file = dir.stringByAppendingPathComponent(self.file)
            
            //writing
            do
            {
                try text.writeToFile(path, atomically: false, encoding: NSUTF8StringEncoding)
            }
            catch {/* error handling here */}
            
            //reading
            do {
                let text2 = try NSString(contentsOfFile: path, encoding: NSUTF8StringEncoding)
            }
            catch {/* error handling here */}
            */
        }
        */
    }
    
//APPEND
//: Playground - noun: a place where people can play

import UIKit

extension String {
    func appendLineToURL(fileURL: NSURL) throws {
        try self.stringByAppendingString("\n").appendToURL(fileURL)
    }

    func appendToURL(fileURL: NSURL) throws {
        let data = self.dataUsingEncoding(NSUTF8StringEncoding)!
        try data.appendToURL(fileURL)
    }
}

extension NSData {
    func appendToURL(fileURL: NSURL) throws {
        if let fileHandle = try? NSFileHandle(forWritingToURL: fileURL) {
            defer {
                fileHandle.closeFile()
            }
            fileHandle.seekToEndOfFile()
            fileHandle.writeData(self)
        }
        else {
            try writeToURL(fileURL, options: .DataWritingAtomic)
        }
    }
}

// Test
do {
    let url = NSURL(fileURLWithPath: "test.log")
    try "Test \(NSDate())".appendLineToURL(url)
    let result = try String(contentsOfURL: url)
}
catch {
    print("Could not write to file")
}