realvjy

// Lines
float hash( float n ) {
    return fract(sin(n)*753.5453123);
}

// Slight modification of iq's noise function.
float noise(vector_float2 x )
{
    vector_float2 p = floor(x);
    vector_float2 f = fract(x);

tapi

import UIKit


extension UICollectionReusableView {
	/// The default implementation of `defaultIdentifier()` uses `NSStringFromClass(class)` rather than `String(class)` so that the module name is includded.
	/// The hope being that this makes collisions unlikely making it unnnecessary to provide your own implementations.
	public class func defaultIdentifier() -> String {
		return NSStringFromClass(self)
	}
}

DaveWoodCom

extension String {
    func isValidEmail() -> Bool {
        guard !self.lowercaseString.hasPrefix("mailto:") else { return false }
        guard let emailDetector = try? NSDataDetector(types: NSTextCheckingType.Link.rawValue) else { return false }
        let matches = emailDetector.matchesInString(self, options: NSMatchingOptions.Anchored, range: NSRange(location: 0, length: self.characters.count))
        guard matches.count == 1 else { return false }
        return matches[0].URL?.scheme == "mailto"
    }
}

krzyzanowskim

import Cocoa

// for-in
func checkForIn(array: [Int], dict: [Int: String]) {
    for num in array where dict[num] != nil {
        num
    }
}

checkForIn([1,2,3,4], dict: [1:"one", 2:"two"])

mackuba

Here's my own list of the interesting stuff announced during this year's WWDC, collected from the keynotes, various Apple docs, blog posts and tweets.

If you're planning to watch the videos, I really recommend this Mac app that helps you download and watch them: https://github.com/insidegui/WWDC.

OS X El Capitan

http://www.apple.com/osx/elcapitan-preview/

• split view - two apps side by side on full screen

Ashton-W

<?xml version="1.0" encoding="UTF-8"?>
<Bucket
   type = "2"
   version = "2.0">
   <Breakpoints>

      <!-- All Exceptions -->
      <BreakpointProxy
         BreakpointExtensionID = "Xcode.Breakpoint.ExceptionBreakpoint">
         <BreakpointContent

iamjason

let state = [ "AK - Alaska", 
                "AL - Alabama", 
                "AR - Arkansas", 
                "AS - American Samoa", 
                "AZ - Arizona", 
                "CA - California", 
                "CO - Colorado", 
                "CT - Connecticut", 
                "DC - District of Columbia", 
                "DE - Delaware", 

jonfriskics

//
//  MapViewController.h
//  MapsCustomInfoWindow
//
//  Created by Jon Friskics on 4/22/14.
//  Copyright (c) 2014 Jon Friskics. All rights reserved.
//

#import <UIKit/UIKit.h>

mayoff

#import <UIKit/UIKit.h>
#import <ImageIO/ImageIO.h>
#import <MobileCoreServices/MobileCoreServices.h>

static UIImage *frameImage(CGSize size, CGFloat radians) {
    UIGraphicsBeginImageContextWithOptions(size, YES, 1); {
        [[UIColor whiteColor] setFill];
        UIRectFill(CGRectInfinite);
        CGContextRef gc = UIGraphicsGetCurrentContext();
        CGContextTranslateCTM(gc, size.width / 2, size.height / 2);

krzysztofzablocki

expr -- (void)printf("[%s, %s]\n",(char *) object_getClassName(*(long*)($esp+4)), (char *) *(long *)($esp+8) )