MartinJNash

extension Array {
    func twoAtATime(block: ((f: T, s: T))->()) {
        var _first: T? = nil
        var _second: T? = nil

        for e:T in self {
            _first = _second
            _second = e

            if _first != nil && _second != nil {

MartinJNash

extension NSString {
    func toDateWithFormatter(dateFormatter: NSDateFormatter) -> NSDate? {
        return dateFormatter.dateFromString(self)
    }
}

MartinJNash

import Cocoa

infix operator  ||= {}

func ||= <T> (inout value: T?, newValue: @autoclosure () -> T) -> T {
    if value == nil {
        value = newValue()
    }
    
    return value!

MartinJNash

override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!)
{
    if let vc = segue.destinationViewController as? CreateNoteViewController {
        println("Create Note VC")
    }
    
    if let vc = segue.destinationViewController as? SingleNoteViewController {
        println("Show single note")
    }
}

MartinJNash

class Person {
    class func classString() -> String {
        return NSStringFromClass(self)
    }
}


Person.classString() // "_TtC11lldb_expr_06Person"

MartinJNash

ALAssetRepresentation *rep =  [asset defaultRepresentation];
NSDictionary *dict = [rep metadata];
NSString *xmp = dict[@"AdjustmentXMP"];
NSData *xmpData = [xmp dataUsingEncoding:NSUTF8StringEncoding];
        
NSError *e = nil;
NSArray *filters = [CIFilter filterArrayFromSerializedXMP:xmpData inputImageExtent:CGRectZero error:&e];
CIFilter *filter = [filters firstObject];
CIImage *image =[CIImage imageWithCGImage: [rep fullScreenImage]];
[filter setValue:image forKey:kCIInputImageKey];