| extension Sequence { | |
| /// Maps through the elements one by one, | |
| /// executing the closure for each of them one at a time. | |
| func asyncMap<T>( | |
| _ closure: @Sendable (Element) async throws -> T | |
| ) async rethrows -> [T] { | |
| var array: [T] = [] | |
| array.reserveCapacity(self.underestimatedCount) |
| /// Withable is a simple protocol to make constructing | |
| /// and modifying objects with multiple properties | |
| /// more pleasant (functional, chainable, point-free) | |
| public protocol Withable { | |
| init() | |
| } | |
| public extension Withable { | |
| /// Construct a new instance, setting an arbitrary subset of properties | |
| init(with config: (inout Self) -> Void) { |
| curl -X POST \ | |
| -H "X-Parse-Application-Id: LL9oIdzIkmwl5xyowQQu0fTmXyUWfet9RuAzwHfj" \ | |
| -H "X-Parse-REST-API-Key: R3S8PYQKuzeV4c8MUeO5ved46C50MEp56boDHW1O" \ | |
| -H "Content-Type: application/json" \ | |
| -d @data.json \ | |
| https://parseapi.back4app.com/functions/import |
| import UIKit | |
| // Snapshot utilities | |
| extension UIView { | |
| func snapshotView(view: UIView, afterUpdates: Bool) -> UIView { | |
| let snapshot = view.snapshotViewAfterScreenUpdates(afterUpdates) | |
| self.addSubview(snapshot) | |
| snapshot.frame = convertRect(view.bounds, fromView: view) | |
| return snapshot |
My notes for Dokku on Digital Ocean.
These may be a bit outdated: Since I originally wrote them, I've reinstalled on a newer Dokku and may not have updated every section below.
Install dokku-cli (gem install dokku-cli) for a more Heroku-like CLI experience (dokku config:set FOO=bar).
# List/run commands when not on Dokku server (assuming a "henroku" ~/.ssh/config alias)
ssh henroku dokku
| @implementation UIPopoverPresentationController (PSPDFAdditions) | |
| + (void)load { | |
| PSPDFSwizzleMethodImplementation(self, @selector(containerViewWillLayoutSubviews), ^(UIPopoverPresentationController *_self) { | |
| // Refresh bar button view internals | |
| [_self pspdf_updateBarButtonView]; | |
| ((void( *)(id, SEL))objc_msgSend)(_self, PSPDFPrefixedSelector(containerViewWillLayoutSubviews)); | |
| }); | |
| } |
| extension Dictionary { | |
| public func map<T: Hashable, U>(@noescape transform: (Key, Value) -> (T, U)) -> [T: U] { | |
| var result: [T: U] = [:] | |
| for (key, value) in self { | |
| let (transformedKey, transformedValue) = transform(key, value) | |
| result[transformedKey] = transformedValue | |
| } | |
| return result | |
| } | |
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.
http://www.apple.com/osx/elcapitan-preview/
| // | |
| // SimpleScrollingStack.swift | |
| // A super-simple demo of a scrolling UIStackView in iOS 9 | |
| // | |
| // Created by Paul Hudson on 10/06/2015. | |
| // Learn Swift at www.hackingwithswift.com | |
| // @twostraws | |
| // | |
| import UIKit |
| # Run the following code on a folder that contains all your images | |
| for f in *.png; do convert "$f" -background white -alpha remove -flatten -alpha off "$f"; done |
