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/node_modules
/public/storage
/storage/*.key
/vendor
Homestead.yaml
Homestead.json
.env

# ====== OS X ===========================================
.DS_Store

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# Read http://robots.thoughtbot.com/xcode-and-git-bridging-the-gap for an explanation
# Read https://roadfiresoftware.com/2015/09/automatically-resolving-git-merge-conflicts-in-xcodes-project-pbxproj/ for more
*.pbxproj merge=union
*.strings text diff

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import UIKit
import PlaygroundSupport

public extension UIColor {
    public func hsba() -> (hue: CGFloat, saturation: CGFloat, brightness: CGFloat, alpha: CGFloat)? {
        var hue: CGFloat = .nan, saturation: CGFloat = .nan, brightness: CGFloat = .nan, alpha: CGFloat = .nan
        guard self.getHue(&hue, saturation: &saturation, brightness: &brightness, alpha: &alpha) else {
            return nil
        }
        return (hue: hue, saturation: saturation, brightness: brightness, alpha: alpha)

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Types

A type is a collection of possible values. An integer can have values 0, 1, 2, 3, etc.; a boolean can have values true and false. We can imagine any type we like: for example, a HighFive type that allows the values "hi" or 5, but nothing else. It's not a string and it's not an integer; it's its own, separate type.

Statically typed languages constrain variables' types: the programming language might know, for example, that x is an Integer. In that case, the programmer isn't allowed to say x = true; that would be an invalid program. The compiler will refuse to compile it, so we can't even run it.

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Git Cheat Sheet

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Commands

Getting Started

git init

or

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#!/bin/bash

#
# Updates all plug-ins to be compatible with the latest Xcode and Xcode-beta
#

plugins_location="~/Library/Application\ Support/Developer/Shared/Xcode/Plug-ins"

# Get Xcode's version
current_xcode_version="$(defaults read /Applications/Xcode.app/Contents/Info DVTPlugInCompatibilityUUID)"

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func measure(prefix: String = "Time Taken", closure:()->()) {
  let a = CFAbsoluteTimeGetCurrent()
  closure()
  let b = CFAbsoluteTimeGetCurrent()
  let m = ((b-a) * 1000.0)
  print("\(prefix): \(m) ms")
}

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sys_rb_usr=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr
sdk_rb_usr=`xcode-select -p`/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr
sudo cp -r $sdk_rb_usr/include $sys_rb_usr/include

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#ifdef DEBUG
  #define DLog(...) NSLog(@"%s %@", __PRETTY_FUNCTION__, [NSString stringWithFormat:__VA_ARGS__])
  #define ALog(...) [[NSAssertionHandler currentHandler] handleFailureInFunction:[NSString stringWithCString:__PRETTY_FUNCTION__ encoding:NSUTF8StringEncoding] file:[NSString stringWithCString:__FILE__ encoding:NSUTF8StringEncoding] lineNumber:__LINE__ description:__VA_ARGS__]
#else
  #define DLog(...) do { } while (0)
  #define ALog(...) [TestFlight passCheckpoint:[NSString stringWithFormat:__VA_ARGS__]]
  #ifndef NS_BLOCK_ASSERTIONS
    #define NS_BLOCK_ASSERTIONS
  #endif
#endif

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// https://github.com/rs/SDWebImage
// https://github.com/rs/SDWebImage/wiki/How-is-SDWebImage-better-than-X%3F

#import "SDWebImageDecoder.h"

@implementation UIImage (ForceDecode)

+ (UIImage *)decodedImageWithImage:(UIImage *)image
{	
    CGImageRef imageRef = image.CGImage;