| doubleMe x = x + x | |
| doubleUs x y = doubleMe x + doubleMe y | |
| doubleSmallNumber x = if x < 100 | |
| then x * 2 | |
| else x | |
| eoeo xs = [if mod x 2 == 0 then 'e' else 'o' | x <- xs] | |
| length'' xs = sum [1 | _ <- xs] | |
| combo xs ys = [x ++ " " ++ y | x <- xs, y <- ys] | |
| nestedEven xxs = [[ x | x <- xs, even x] | xs <- xxs] |
As pointed out by @johntyree in the comments, using git reflog is easier and more reliable. Thanks for the suggestion!
$ git reflog
1ed7510 HEAD@{1}: checkout: moving from develop to 1ed7510
3970d09 HEAD@{2}: checkout: moving from b-fix-build to develop
1ed7510 HEAD@{3}: commit: got everything working the way I want
70b3696 HEAD@{4}: commit: upgrade rails, do some refactoring
| - (UIImage *)imageWithColor:(UIColor *)color { | |
| CGRect rect = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f); | |
| UIGraphicsBeginImageContext(rect.size); | |
| CGContextRef context = UIGraphicsGetCurrentContext(); | |
| CGContextSetFillColorWithColor(context, [color CGColor]); | |
| CGContextFillRect(context, rect); | |
| UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); | |
| UIGraphicsEndImageContext(); |
| // Taken from the commercial iOS PDF framework http://pspdfkit.com. | |
| // Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved. | |
| // Licensed under MIT (http://opensource.org/licenses/MIT) | |
| // | |
| // You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it. | |
| // PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit. | |
| #import <objc/runtime.h> | |
| #import <objc/message.h> |
| // | |
| // Warnings.xcconfig | |
| // | |
| // The list of warnings we (don’t) use, and the reasons why. | |
| // | |
| // :MARK: Warnings in use: | |
| // :MARK: -everything | |
| // We want the best possible diagnostics, so we simply enable everything that exists, and then opt–out of what doesn’t make sense for us. | |
| // | |
| // :MARK: - Warnings not to be promoted: |
Season's Greetings, NSHipsters!
As the year winds down, and we take a moment to reflect on our experiences over the past months, one thing is clear: 2014 has been an incredible year professionally for Apple developers. So much has happened in such a short timespan, and yet it's hard to remember our relationship to Objective-C before Swift, or what APIs could have captivated our imagination as much as iOS 8 or WatchKit.
It's an NSHipster tradition to ask you, dear readers, to send in your favorite tips and tricks from the past year for publication over the New Year's holiday. This year, with the deluge of new developments—both from Cupertino and the community at large—there should be no shortage of interesting tidbits to share.
Submit your favorite piece of Swift or Objective-C trivia, framework arcana, hidden Xcode feature, or anything else you think is cool, and you could have it featured in the year-end blowout article. Just comment on this gist below!
If you're wondering about what to post, look to
| #!/usr/bin/env xcrun swift | |
| import Foundation | |
| class Base { | |
| } | |
| class Sub : Base { | |
| } |
| #!/usr/bin/env ruby | |
| require 'cocoapods' | |
| require 'fileutils' | |
| def podfile_from_spec(spec) | |
| podfile = File.open('Podfile', 'w') | |
| podfile.write(<<-EOF | |
| platform :ios, '8.0' |
| # taken from https://gist.github.com/orta/694004c20becead3ce1f | |
| urls = %w[ | |
| https://ortastuff.s3.amazonaws.com/gifs/bike.gif | |
| https://ortastuff.s3.amazonaws.com/gifs/bug-hunting.gif | |
| https://ortastuff.s3.amazonaws.com/gifs/cheers-boxing.gif | |
| https://ortastuff.s3.amazonaws.com/gifs/clap-2.gif | |
| https://ortastuff.s3.amazonaws.com/gifs/clap.gif | |
| https://ortastuff.s3.amazonaws.com/gifs/danger.gif | |
| https://ortastuff.s3.amazonaws.com/gifs/delisa-nah.gif | |
| https://ortastuff.s3.amazonaws.com/gifs/delisa-one-thumb.gif |
