| // | |
| // The code snippets below showcase common "problem code" that can take a long time to compile. | |
| // These examples were primarily observed in Swift 2/3 and may no longer be relevant in Swift 4 or higher. | |
| // | |
| /// 1. Array concatenation | |
| // Observed by Robert Gummesson - https://medium.com/@RobertGummesson/regarding-swift-build-time-optimizations-fc92cdd91e31#c75c | |
| // Joining two arrays together with the '+' operator can be expensive to compile. | |
| let someArray = ["a", "b"] + ["c", "d"] |
| import UserNotifications | |
| // 1. Request Permission | |
| func requestAuthorization() { | |
| UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound]) { (granted, error) in | |
| if granted { | |
| // Success | |
| } else { | |
| // Error | |
| print(error?.localizedDescription) |
| extension UIVisualEffectView { | |
| private var filterLayer: CALayer? { | |
| return layer.sublayers?.first | |
| } | |
| private var blurFilter: NSObject? { | |
| return filterLayer? | |
| .filters?.flatMap({ $0 as? NSObject }) | |
| .first(where: { $0.value(forKey: "name") as? String == "gaussianBlur" }) |
Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.
This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would
| /* | |
| The "hello world" of neural networks: a simple 3-layer feed-forward | |
| network that implements an XOR logic gate. | |
| The first layer is the input layer. It has two neurons a and b, which | |
| are the two inputs to the XOR gate. | |
| The middle layer is the hidden layer. This has two neurons h1, h2 that | |
| will learn what it means to be an XOR gate. | |
| import UIKit | |
| import Photos | |
| extension PHPhotoLibrary { | |
| // MARK: - PHPhotoLibrary+SaveImage | |
| // MARK: - Public | |
| func savePhoto(image:UIImage, albumName:String, completion:((PHAsset?)->())? = nil) { | |
| func save() { |
| /// This is a list of Hypertext Transfer Protocol (HTTP) response status codes. | |
| /// It includes codes from IETF internet standards, other IETF RFCs, other specifications, and some additional commonly used codes. | |
| /// The first digit of the status code specifies one of five classes of response; an HTTP client must recognise these five classes at a minimum. | |
| enum HTTPStatusCode: Int, Error { | |
| /// The response class representation of status codes, these get grouped by their first digit. | |
| enum ResponseType { | |
| /// - informational: This class of status code indicates a provisional response, consisting only of the Status-Line and optional headers, and is terminated by an empty line. | |
| case informational |
| from django.db import models | |
| class Member(models.Model): | |
| # RE: null vs blank | |
| # | |
| # NULL https://docs.djangoproject.com/en/1.10/ref/models/fields/#null | |
| # Avoid using null on string-based fields such as CharField and TextField because | |
| # empty string values will always be stored as empty strings, not as NULL. | |
| # |
| <?xml version="1.0" encoding="UTF-8"?> | |
| <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> | |
| <plist version="1.0"> | |
| <array> | |
| <string>fb254145378030027</string> | |
| <string>isupr8</string> | |
| <string>fb176151905794941</string> | |
| <string>recipeSearch-iPad</string> | |
| <string>airfile</string> | |
| <string>univision</string> |
