iOS Tutorial => Creating NSData objects

Example

let data = NSData(contentsOfFile: filePath) //assuming filePath is a valid path

NSData *data = [NSData dataWithContentsOfFile:filePath]; //assuming filePath is a valid path

let data = (string as NSString).dataUsingEncoding(NSUTF8StringEncoding) //assuming string is a String object

NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding]; //assuming string is a String object

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